743 B | 719 chars
"""
[20154: 이 구역의 승자는 누구야?!](https://www.acmicpc.net/problem[20154)
Tier: Bronze
Category: 구현
"""
d = {
'A': 3,
'B': 2,
'C': 1,
'D': 2,
'E': 3,
'F': 3,
'G': 3,
'H': 3,
'I': 1,
'J': 1,
'K': 3,
'L': 1,
'M': 3,
'N': 3,
'O': 1,
'P': 2,
'Q': 2,
'R': 2,
'S': 1,
'T': 2,
'U': 1,
'V': 1,
'W': 2,
'X': 2,
'Y': 2,
'Z': 1,
}
def solution():
s = input()
l = [d[i] for i in s]
while len(l) > 1:
l2 = []
for i in range(0, len(l), 2):
if i + 1 >= len(l):
l2.append(l[i])
else:
l2.append((l[i] + l[i+1]) % 10)
l = l2
return "I'm a winner!" if l[0] % 2 else "You're the winner?"
if __name__ == '__main__':
print(solution())