C = input().split()
qpos = C.index('?')

if qpos == 0:
    if C[1] < C[2]:
        print(4)
    if C[1] > C[2]:
        print(1)
elif qpos == 1:
    print(14)
elif qpos == 2:
    if C[0] < C[1]:
        print(1)
    if C[0] > C[1]:
        print(4)