S = input()

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

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