# coding: utf-8
# Your code here!
s=list(input())
print("x"*len(s)) s=list(input()) s list(input()) list input() input print("x"*len(s)) print "x"*len(s) "x" len(s) len s s=list(input()) list(input()) s
# coding: utf-8
# Your code here!
s=list(input())
print("x"*len(s))