# coding: utf-8
s = input()
ans = "x" * len(s)
print(ans) s = input() s input() input ans = "x" * len(s) ans "x" * len(s) "x" len(s) len s print(ans) print ans ans = "x" * len(s) "x" * len(s) ans s = input() input() s
# coding: utf-8
s = input()
ans = "x" * len(s)
print(ans)
