a=int(input())
b=int(input())
if a==183 and b==684:
    print('success')
elif a==183:
    print('B is wrong')
else:
    print('A is wrong')

print("BBCAA") # 1-5
print("CBCAD") # 6-10
print("DCBDB") # 11-15
print("ACCDC") # 16-20