s = input()

s = 'x'*len(s)

print(s) s = input() s input() input s = 'x'*len(s) s 'x'*len(s) 'x' len(s) len s print(s) print s s = input() input() s s = 'x'*len(s) 'x'*len(s) s
s = input()

s = 'x'*len(s)

print(s)
