import sys
import decimal # 10進法に変換，正確な計算

def input():
    return sys.stdin.readline().strip()

def main():
    s = list(input())
    for i in range(len(s)):
        print("x", end="")
    
    


    
main() import sys sys import decimal decimal def input():
    return sys.stdin.readline().strip() input return sys.stdin.readline().strip() sys.stdin.readline().strip() sys.stdin.readline().strip sys.stdin.readline() sys.stdin.readline sys.stdin sys stdin readline strip def main():
    s = list(input())
    for i in range(len(s)):
        print("x", end="")
    
    


     main s = list(input()) s list(input()) list input() input for i in range(len(s)):
        print("x", end="")
    
    


     i range(len(s)) range len(s) len s print("x", end="") print "x" end="" end "" main() main def input():
    return sys.stdin.readline().strip() def input():
    return sys.stdin.readline().strip() input def main():
    s = list(input())
    for i in range(len(s)):
        print("x", end="")
    
    


     def main():
    s = list(input())
    for i in range(len(s)):
        print("x", end="")
    
    


     main
import sys
import decimal # 10進法に変換，正確な計算

def input():
    return sys.stdin.readline().strip()

def main():
    s = list(input())
    for i in range(len(s)):
        print("x", end="")
    
    


    
main()