s = input()
for i in range(len(s)):
  print('x',sep='',end='') s = input() s input() input for i in range(len(s)):
  print('x',sep='',end='') i range(len(s)) range len(s) len s print('x',sep='',end='') print 'x' sep='' sep '' end='' end '' s = input() input() s
s = input()
for i in range(len(s)):
  print('x',sep='',end='')