#k = int(input())
#s = input()
#a, b = map(int, input().split())
#s, t = map(str, input().split())
#l = list(map(int, input().split()))

s = input()

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

print("") s = input() s input() input for i in s:
    print("x", end="") i s print("x", end="") print "x" end="" end "" print("") print "" s = input() input() s
#k = int(input())
#s = input()
#a, b = map(int, input().split())
#s, t = map(str, input().split())
#l = list(map(int, input().split()))

s = input()

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

print("")
