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3 1 1 0 1 -1 1 2 4 0 1 1 7 1 3 -2 -7 7 8 -2 9 -7 -3 4 -3 -2 -2 0
3.000 5.099 37.336
Info: 本題輸出為浮點數，絕對或相對誤差 1e-3 以下視為正確
Migrated from old NTUJ.
Regional Kuala Lumpur 2011