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3 10 4 3 4 10 5 4 5 20 6 5 6 30 3 7 -4 3 4 -10 5 4 5 20 6 5 6 30 3 1 -4 3 4 -10 -5 4 5 -20 6 5 6 30 3 10 -4 3 4 -10 -5 4 5 -20 -6 5 6 -30 0
43.5 36 13.5 0
Info: 本題輸出為浮點數，絕對或相對誤差 1e-4 以下視為正確
Migrated from old NTUJ.