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XR097

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Accepted problems：38 problems

61 265 492 493 546 616 620 648 653 13249 13251 13255 13257 13259 13261 13262 13269 21999 22001 22002 22008 22010 22012 22013 22014 22015 22016 22017 22018 22020 22024 22025 22026 22027 22031 22032 22033 22034

Tried problems：12 problems

3001 3006 3007 3010 3013 3048 3049 3051 3053 3054 3055 3057

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