s = input()
for i in range(len(s) - 1):
    print("x",end="")
print("x") s = input() s input() input for i in range(len(s) - 1):
    print("x",end="") i range(len(s) - 1) range len(s) - 1 len(s) len s 1 print("x",end="") print "x" end="" end "" print("x") print "x" s = input() input() s
s = input()
for i in range(len(s) - 1):
    print("x",end="")
print("x")