2025-09-13 20:47:03 +09:00

18 lines
346 B
Python

S = input()
if 'A' in S :
S = S.replace('B', 'A')
S = S.replace('C', 'A')
S = S.replace('D', 'A')
S = S.replace('F', 'A')
elif 'B' in S :
S = S.replace('C', 'B')
S = S.replace('D', 'B')
S = S.replace('F', 'B')
elif 'C' in S :
S = S.replace('D', 'C')
S = S.replace('F', 'C')
else :
S = 'A'*len(S)
print(S)