S = input()

result = ''
for _ in S:
    result += 'x'

print(result) S = input() S input() input result = '' result '' for _ in S:
    result += 'x' _ S result += 'x' result 'x' print(result) print result result = '' '' result result += 'x' 'x' result S = input() input() S
S = input()

result = ''
for _ in S:
    result += 'x'

print(result)