n, char = input().split(" ")
for x in range(2):
for y in range(int(n)):
print(char * (y+1))
for x in range(int(n)):
print(char)
biwgY2hhciA9IGlucHV0KCkuc3BsaXQoIiAiKQpmb3IgeCBpbiByYW5nZSgyKToKICAgIGZvciB5IGluIHJhbmdlKGludChuKSk6CiAgICAgICAgcHJpbnQoY2hhciAqICh5KzEpKQpmb3IgeCBpbiByYW5nZShpbnQobikpOgogICAgcHJpbnQoY2hhcik=