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Multiple input terminated by EOF.
6 3 1.0 1 2 3 4 5 6 0 0 1 0 2 0 0 1 1 1 2 1 6 3 1.0 1 2 3 4 5 6 0 0 1 0 2 0 0 1 1 1 2 1
3 3
Info: 本題輸出為浮點數，絕對或相對誤差 1e-6 以下視為正確
Migrated from old NTUJ.
JAG 2011 winter camp