stones.py

a = input()
b = input()
print('Сколько камней ?')
r = int(input())
i = 0
o = 0
while o == 0:
    c = int(input())
    if not c == 2 or not c < 4:
        r -= c
    else:
        print('бан')
        break
    if r == 0:
        if i % 2 == 0:
            print(b)
            o += 1
        elif i % 2 == 1:
            print(a)
            o += 1
        else:
            pass
    else:
        pass
    i += 1