题解

100%AC

List = input().split()
T = List.count("1")
F = List.count("0")
if T > F:
    if (T - 4) % 2 == 0:
        print((T-4)//2)
    else:
        print((T-4)//2+1)
elif F > T:
    if (F - 4) % 2 == 0:
        print((F-4)//2)
    else:
        print((F-4)//2+1)
elif T == 8 or F == 8:
    print(4)
elif T == F:
    print(0)