s = input()
t = ""

for _ in range(len(s)):
  t += "x"
  
print(t) s = input() s input() input t = "" t "" for _ in range(len(s)):
  t += "x"
   _ range(len(s)) range len(s) len s t += "x" t "x" print(t) print t t = "" "" t t += "x" "x" t s = input() input() s
s = input()
t = ""

for _ in range(len(s)):
  t += "x"
  
print(t)