from itertools import permutations
g = 'AB BC CD DA'.split()
t = '24 13 24 13'.split()
print('1 2 3 4')
for p in permutations('ABCD'):
if all(str(p.index(b2) + 1) in t[p.index(b1)] for b1, b2 in g): # 7
print(*p)
break
RError.com
