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1.210310-204.p20-1005.6.7.10-508.9.2010.50-10011.12.1013.1014.1015.16.20017.50-10018.50-10019.1020.2021.2022.2023.1024.2025.302610-3027.50-10028.30029100-500a() () () () () () ,() () () () () 1b() () () () () () () () () () () () 4c() () () () () () () () () () , , () () 20d() () () c() 50 100 50 50 100 100 5000100505010015 101000400200100 () 50 100 50 50 100 100 50001005050100151010004002001001.210310-204.p20-1005.6.7.10-508.9.2010.50-10011.12.1013.1014.1015.16.20017.50-10018.50-10019.1020.2021.2022.2023.1024.2025.302610-3027.50-10028.30029100-500 a() () ()
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