x = input()
list_1 = ['a1', 'a2', 'a3', 'a4']
list_2 = ['b1', 'b2', 'b3', 'b4']
list_3 = ['c1', 'c2', 'c3', 'c4']
s = [list_1, list_2, list_3]
print(s[int(x)])
eCA9IGlucHV0KCkKCmxpc3RfMSA9IFsnYTEnLCAnYTInLCAnYTMnLCAnYTQnXQpsaXN0XzIgPSBbJ2IxJywgJ2IyJywgJ2IzJywgJ2I0J10KbGlzdF8zID0gWydjMScsICdjMicsICdjMycsICdjNCddCgpzID0gW2xpc3RfMSwgbGlzdF8yLCBsaXN0XzNdCgpwcmludChzW2ludCh4KV0pCg==