import os, sys, re, math

S = input()

print('x' * len(S)) import os, sys, re, math os sys re math S = input() S input() input print('x' * len(S)) print 'x' * len(S) 'x' len(S) len S S = input() input() S
import os, sys, re, math

S = input()

print('x' * len(S))
