| Controllers | The mechanically actuated unit injection system features a high-pressure fuel injection system,proven to significantly reduce fuel consumption and particulate emission. Electronic Unit Injection (EUI) produces high-pressure and affords the integration of electronics with fewer components. The modular design of the electronic control system allows greater update, flexibility, improves serviceability and lowers repair costs. |
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| Cat C13 with ACERT™ Technology | Built for power, reliability, economy and low emissions. | 
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| Performance | The C13 with ACERT™ Technology offers 21% greater displacement than the 3176C, and runs at 10% lower speeds for better fuel economy and reduced wear. The 345C L, equipped with the C13, provides 8% more horsepower compared to the 3176C in the 345B Series II. |
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| Fuel Consumption | With ACERT Technology, the C13 meets EU stage 2 emissions while delivering good fuel economy. |
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| Emissions | Caterpillar ACERT Technology is a differentiated technology that reduces emissions at the point of combustion. Caterpillar technology captalized on the proven leadership in three core engine systems: fuel, air and electronics. |
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| Low Sound and Vibration Levels | The engine mounts are rubber-isolating mounts matched with the engine package to provide optimum sound and vibration reduction. Further noise reduction has been achieved through design changes to the isolated top cover, oil pan, multiple injection strategy, insulated timing cover, sculpted crankcase. |
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| Product Link | Product Link is now an attachment available from the factory on the 345C L. |
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| Fuel System | The Cat C13 features electronic controls that govern the mechanically actuated unit fuel injection (MEUI) system. MEUI provides the high-pressure required to help reduce particulate emissions and deliver better fuel economy through finer fuel atomization and more complete combustion. |
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| Cooling System | The 345C L layout separates the cooling system from the engine compartment. The cooling fan is hydraulically driven with a variable speed control that manages fan speed to provide optimized cooling. |
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| Air Cleaner | The radial seal air filter features a double-layered filter core for more efficient filtration and is located in a compartment behind the cab. A warning is displayed on the monitor when dust accumulates above a preset level. |
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| Turbocharger | The Cat C13 uses a wastegate turbocharger for improved performance. - The wastegate valve controls excessive engine boost pressure by allowing exhaust to bypass the exhaust-side turbine.
- The turbocharger increases the density of the air, enabling the engine to produce more power with few effects from altitude.
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| Cold Weather Starting Kit | The kit consists of four batteries, heavy-duty harness, large capacity starting motor and the ether starting aid. With this kit, the 345C L has the capability to start at 32° C (-25.6° F). |
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| Hydraulics | Cat hydraulics deliver power and precise control to keep material moving. | 
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| Pilot System | The hydraulic pilot system controls the front linkage, swing and travel operations. |
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| Component Layout | The 345C L hydraulic system and component locations have has been designed to provide a high level of overall system efficiency. |
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| Hydraulic Cross-Sensing System | The two main hydraulic pumps use 100 percent of available horsepower resulting in faster implement speeds and increased productivity. |
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| Boom and Stick Regeneration Circuit | Saves energy during boom-down and stick-in operation, providing shorter cycle times and lower operating costs. |
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| Boom and Swing Priority | The hydraulic system on the 345C L provides automatic priority function for boom-up and swing operations eliminating the need for work mode buttons. When the boom or swing lever is activated, the system automatically assigns priority based on operator demand. |
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| Auxiliary Hydraulic Valve | The auxiliary valve is standard on the 345C L. Control circuits are available as attachments, allowing operation of high and medium pressure tools such as shears, grapples, hammers, pulverizers, multi-processors and vibratory plate compactors. |
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| Hydraulic Cylinder Snubbers | Snubbers are located at the rod-end of the boom cylinders and both ends of the stick cylinders to cushion shocks while reducing sound levels and extending component life. |
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| Operator Station | Designed for simple, easy operation, the 345C L allows the operator to focus on production. | 
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| Cab Design | The workstation is spacious, quiet and comfortable, assuring high productivity during a long work day. The air conditioner and attachment switches are conveniently located on the right-hand wall, and the key switch and throttle dial are on the right-hand console. The monitor is easy to see and maximizes visibility. |
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| Seat | A new optional air suspension seat is available in the 345C L. The standard and optional seats provide a variety of adjustments to suit the operator’s size and weight including fore/aft, height and weight. Wide adjustable armrests and a retractable seat belt are also included. |
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| Hydraulic Activation Control Lever | For added safety, this lever must be in the operate position to activate the machine control functions. |
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| Climate Control | Positive filtered ventilation with a pressurized cab comes standard on the 345C L. Fresh air or re-circulated air can be selected with a switch on the left console. |
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| Windows | To maximize visibility, all glass is affixed directly to the cab, eliminating window frames. The upper front windshield opens, closes and stores on the roof above the operator with a one-touch action release system. |
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| Wipers | Pillar-mounted wipers increase the operator’s viewing area and offer continuous and intermittent modes. |
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| Skylight | An enlarged skylight with sunshade provides excellent visibility and good ventilation. |
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| Console | Redesigned consoles feature a simple, functional design to reduce operator fatigue, ease of switch operation and excellent visibility. Both consoles have attached armrests with height adjustments. | 
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| Monitor | The compact, full-color, graphical display monitor, new with the 345C L, displays machine, maintenance, diagnostic and prognostic information, in twenty different languages. Monitor angle can be adjusted to minimize sun glare. |
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| Cab Exterior | The exterior design uses thick steel tubing along the bottom perimeter of the cab, improving the resistance of fatigue and vibration. This design allows the FOGS to be bolted directly to the cab, at the factory or as an attachment later, enabling the machine to meet specifications and job site requirements. |
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| Cab Mounts | The cab shell is attached to the frame with viscous rubber cab mounts, which dampen vibrations and sound levels while enhancing operator comfort. |
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| Standard Cab Equipment | To enhance operator comfort and productivity, the cab includes a lighter, drink holder, coat hook, service meter, literature holder, magazine rack and storage compartment. |
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| Machine Security | An optional Machine Security System is available from the factory on the 345C L. This system controls when the machine can be operated and utilizes specific keys to prevent unauthorized machine use, a significant theft deterrent. |
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| Electronic Control System | Manages the engine and hydraulics for maximum performance. | 
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| Travel Controls | The 345C L uses pilot operated control levers, positioned so the operator can operate with arms on the armrests. The vertical stroke is longer than the horizontal stroke, reducing operator fatigue. The control lever grips are shaped to fit into the operator’s hands. The horn switch and one-touch low idle switch are positioned on the left and right grip. |
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| Keypad | The keypad allows operator to select machine operation conditions and to set view preferences. |
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| ADEM™ A4 Engine Controller | The ADEM A4 electronic control module manages fuel delivery to get the best performance per liter or gallon of fuel used. The engine management system provides flexible fuel mapping, allowing the engine to respond quickly to varying application needs. It tracks engine and machine conditions while keeping the engine operating at peak efficiency. |
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| Monitor Display Screen | The monitor is a full color 400x234 pixels Liquid Crystal Display (LCD) graphic display.
The Master Caution Lamp blinks ON and OFF when one of these critical conditions occur:
- Engine oil pressure low
- Coolant temperature high
- Hydraulic oil temperature high
Under the normal condition or the default condition, the monitor display screen is divided into four areas: clock and throttle dial area, gauge area, event display area and multi-information display area. |
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| Clock and Throttle Dial Area | The clock and the throttle dial position are in this area and the gas-station icon with green color is also displayed. |
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| Gauge Area | Three analog gauges, fuel level, hydraulic oil temperature and coolant temperature, are displayed in this area. |
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| Event Display Area | Machine information is displayed in this area with graphic icons plus written messages in twenty different languages including Czech, Danish, Dutch, English, Finnish, French, German, Greek, Icelandic, Indonesian, Italian, Japanese, Norwegian, Portuguese, Russian, Simplified Chinese, Spanish, Swedish, Thai and Turkish. |
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| Multi-information Display Area | This area is reserved for displaying information that is convenient for the operator. The "CAT" logo mark is displayed when information to display does not exist. |
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| Undercarriage | Durable undercarriage absorbs stresses and provides excellent stability. | 
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| Travel Motors | Two-speed axial piston hydraulic motors provide the 345C L drive power and speed selection which is automatic when the high-speed position is selected. This enables the machine to automatically change between computer-controlled high and low speeds depending on drawbar-pull requirements. |
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| Straight-line Travel Circuit | The straight-line travel circuit is incorporated into the hydraulic system, which maintains low-speed, straight-line travel, even when operating the front linkage. |
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| Track | The 345C L comes standard with the new grease lubricated track called GLT4. The track links are assembled and sealed with grease to decrease internal bushing wear, reduce travel noise and extend service life lowering operating costs. | 
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| Final Drive | The final drives are a new compact design with three-stage planetary reduction. This design results in a complete drive/brake unit that is compact and delivers excellent performance and reliability. |
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| Track Guards | The idler guard and bolt-on center guard are standard equipment. They help maintain track alignment while traveling or working on slopes. For applications that require additional track protection or alignment, optional guards are available. |
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| Structures | The 345C L structural components are the backbone of the machine’s durability. | 
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| Stick Construction | The 345C L sticks are made of high-tensile strength steel, using a large box section design, interior baffle plates and an additional bottom guard.
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| Linkage Pins | The bucket linkage pins have been enlarged and have a thick chrome plating improving reliability,
durability, giving them high wear and corrosion resistance. An adapter kit is available for using 345B II buckets. |
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| Power Link | The new 345C L power link improves durability, increases machine-lifting capability in key lifting positions, and is easier to use compared to the previous lift bar design. | 
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| Carbody | The 345C L has three undercarriage options to meet regional transportation requirements and application needs.
- Standard (STD) undercarriage is well suited for applications that require frequent repositioning of the machine, have restricted working space, or have uneven or rocky terrain.
- Fixed gauge for narrow transport and weight sensitive areas.
- Variable gauge for increased track and ground clearance and over-side lift.
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| Track Roller Frame | Fixed Gauge Undercarriage
- Uses a press-formed, pentagonal section for the track frame that is robot-welded for weld consistency and quality. The track frame has been designed so that the top of the track frame has a steep angle to help prevent accumulation of mud and debris.
Variable Gauge Undercarriage
- The track roller frame is made of thick steel plate that is bent into a U-shape and welded to the bottom plate to create a box structure. The box structure design for increased
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| Work Tools | The 345C L has extensive selection of work tools to optimize machine performance. | 
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| Excavation Buckets | Excavation buckets are designed for general purpose excavation, ranging from low or medium friction soft earth to hard earth. The bucket is designed with a large bucket capacity and tip radius. |
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| Extreme Service Excavation Buckets | These buckets are designed for aggressive bucket loading and digging in abrasive materials. Features include:
- Provides the same wear life as non-extreme service buckets that are used in less abrasive, easy to dig materials.
- Has the same profile as the normal excavation bucket.
- Reinforced with thicker materials for greater wear protection.
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| Upper Frame | The rugged main frame has been narrowed to improve transportability and is designed for maximum durability. Robot welding is used for consistent, high-quality welds. The main channels are box sections connected by a large diameter tube in the boom foot area to improve rigidity and strength. The outer frame utilizes curved side rails for rigidity against bending and torsional loads. |
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| Boom, Sticks and Attachments | Designed for maximum flexibility to keep productivity and efficiency high on all jobs. | 
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| Front Linkage Attachments | Three length of booms and six types of sticks are available, offering a range of configurations suitable for a wide variety of application conditions. |
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| Boom Construction | The 345C L booms have large cross-sections and internal baffle plates to provide long life durability. Forged steel is used in critical high-load areas such as the boom-foot and boom cylinder connection. |
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| Long Reach Boom – 7.4 m (23 ft 3 in) long | The Long Reach boom is new with the introduction of the 345C L. This boom combined with the new 4.3 m (14 ft 1 in) stick provides a similar digging envelope to the previous 345B. This new boom/stick combination has a significantly reduced transport height, eliminating the need to remove the stick cylinder pin. |
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| Reach Boom - 6.9 m (22 ft 8 in) long | The Reach boom is designed to balance reach, digging force bucket capacity, offering a wide range of applications as digging, loading and trenching. |
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| Mass Excavation Boom - 6.55 m (21 ft 6 in) long | The mass boom is designed to provide maximum digging forces, bucket capacity and truck loading productivity. The mass boom comes with two stick options for further job site versatility. |
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Multi-Processor |
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Hammer |
| V-Type Excavation Buckets | The V-type excavation buckets have a V or spade type cutting edge. This greatly improves penetration in materials that are hard or difficult to load. |
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| Mass Excavation Buckets | Large capacity for production truck loading in low-impact, moderately abrasive materials such as dirt, loam, gravel and clay. |
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| Service Life | Caterpillar buckets increase service life and reduce repair costs.
- Dual radius design for increased life and reduced wear.
- Robot welding of hinge assembly for increased weld penetration and longer life.
- Incorporates the new aggressive and easier to install, K GET system.
- High strength and heat-treated steel that exceeds T-1 in high wear areas.
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| Caterpillar Ground Engaging Tools (GET) | The new Caterpillar K-series GET is featured on the new 345C L buckets. This new GET system uses a hammerless vertical retainer, which is easier to remove and install than the old Cat J-series pin. The new tooth shapes are more aggressive and offer excellent penetration. There are a variety of side cutters and sidebar protectors to match operating conditions.
• A new sidecutter design is more aggressive in trenching applications, improving efficiency and bucket payload. | 
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| Tool Control System | The optional tool control system maximizes work tool productivity by configuring hydraulic flow, pressure, and operator controls to match a specific work tool. System versatility enables a wide range of tools to be used. | 
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| Work Tools | Choose from a variety of work tools such as hammers, shears, pulverizers, compactors, multi-processors, sorting grapples and couplers. Ask your Cat dealer for information on attachments or special configurations. |
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| Control Levers | The operator's control lever preferences are diverse in much the same way as different tools. Three types of tool controls are available to ensure that the operator’s preferences are met.
• Foot pedal - The hydraulic modulated foot pedal is used in conjunction with the hydraulic controller. |
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| Service and Maintenance | Simplified service and maintenance save you time and money. | 
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| Extended Service Intervals | Extended service and maintenance intervals increase machine availability. The maintenance intervals for engine oil and engine oil filter have been extended to 500 hours. |
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| Capsule Filter | The hydraulic return filters are located in the hydraulic tank. The filter elements are removable without spilling hydraulic oil. |
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| Pilot Hydraulic System Filter | Pilot hydraulic system filter keeps contaminants from the pilot system and is located in the pump compartment. |
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| Radial Seal Main Air Cleaner | Radial seal main air cleaner with pre-cleaner has a double-layered filter element for more efficient filtration. No tools are required to change the element. |
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| Fuel-Water Separator | The water separator has a primary fuel filter element and is located in the air cleaner compartment for easy access from the ground. |
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| Service Points | Service points are centrally located with easy access to facilitate routine maintenance. |
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| Oil Sample and Pressure Ports | Oil sample and pressure ports provide easy checking of machine condition and are standard on every machine. | 
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| Greasing Points | A concentrated remote greasing block on the boom delivers grease to hard-to-reach locations. |
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| Complete Customer Support | Cat dealer services help you operate longer with lower costs. | 
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| Product Support | You will find nearly all parts at our dealer parts counter. Cat dealers utilize a worldwide computer network to find in-stock parts to minimize machine downtime. You can save money with Cat remanufactured components. |
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| Machine Selection | Make detailed comparisons of the machines you are considering before you buy. What are the job requirements, machine attachments and operating hours? What production is needed? Your Cat dealer can provide recommendations. |
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| Purchase | Look past initial price. Consider the financing options available as well as day-to-day operating costs. This is also the time to look at dealer services that can be included in the cost of the machine to yield lower equipment owning and operating costs over the long run. |
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| Customer Support Agreements | Cat dealers offer a variety of product support agreements, and work with customers to develop a plan the best meets specific needs. These plans can cover the entire machine, including attachments, to help protect the customer’s investment. |
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| Operation | Improving operating techniques can boost your profits. Your Cat dealer has videotapes, literature and other ideas to help you increase productivity, and Caterpillar offers certified operator training classes to help maximize the return on your investment. |
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| Maintenance Services | Repair option programs guarantee the cost of repairs up front. Diagnostic programs such as Scheduled Oil Sampling, Coolant Sampling and Technical Analysis help you avoid unscheduled repairs. |
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| Replacement | Repair, rebuild or replace? Your Cat Dealer can help you evaluate the cost involved so you can make the right choice. |
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