백준 2490번 파이썬

lists = [0]*4

for i in range(3):

lists = list(map(int,input().split()))

if lists.count(1) == 0:

print('D')

elif lists.count(1) == 1:

print('C')

elif lists.count(1) == 2:

print('B')

elif lists.count(1) == 3:

print('A')

elif lists.count(1) == 4:

print('E')