def T(Y):
    if Y >= 0:
        return Y*1     # そのまま
    else:
        return Y*-1    # マイナスを反転

def MR(x):
    if x >= 0:
        return int(x + 0.5)
    else:
        return -int(T(x) + 0.5)
print(f'{MR(3.12)}')

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