s = input()
new = ''

for c in s:
    new += 'x'

print(new) s = input() s input() input new = '' new '' for c in s:
    new += 'x' c s new += 'x' new 'x' print(new) print new new += 'x' 'x' new new = '' '' new s = input() input() s
s = input()
new = ''

for c in s:
    new += 'x'

print(new)