string = input()
replaced_string = ''
while len(replaced_string) < len(string):
    replaced_string += 'x'
print(replaced_string) string = input() string input() input replaced_string = '' replaced_string '' while len(replaced_string) < len(string):
    replaced_string += 'x' len(replaced_string) < len(string) len(replaced_string) len replaced_string len(string) len string replaced_string += 'x' replaced_string 'x' print(replaced_string) print replaced_string replaced_string = '' '' replaced_string replaced_string += 'x' 'x' replaced_string string = input() input() string
string = input()
replaced_string = ''
while len(replaced_string) < len(string):
    replaced_string += 'x'
print(replaced_string)