def i():
	return int(input())
def i2():
	return map(int,input().split())
def s():
	return str(input())
def l():
	return list(input())
def intl():
	return list(int(k) for k in input().split())

s = s()
for i in range(len(s)):
	print("x",end="") def i():
	return int(input()) i return int(input()) int(input()) int input() input def i2():
	return map(int,input().split()) i2 return map(int,input().split()) map(int,input().split()) map int input().split() ().split () input split def s():
	return str(input()) s return str(input()) str(input()) str input() input def l():
	return list(input()) l return list(input()) list(input()) list input() input def intl():
	return list(int(k) for k in input().split()) intl return list(int(k) for k in input().split()) list(int(k) for k in input().split()) list int(k) int k s = s() s s() s 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 "" def i2():
	return map(int,input().split()) def i2():
	return map(int,input().split()) i2 def i():
	return int(input()) def i():
	return int(input()) i def l():
	return list(input()) def l():
	return list(input()) l def intl():
	return list(int(k) for k in input().split()) def intl():
	return list(int(k) for k in input().split()) intl s = s() s() s def s():
	return str(input()) def s():
	return str(input()) s
def i():
	return int(input())
def i2():
	return map(int,input().split())
def s():
	return str(input())
def l():
	return list(input())
def intl():
	return list(int(k) for k in input().split())

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