s=input()
n=len(s)
X=[]
for i in range(n):
  X.append('x')
print(''.join(X)) s=input() s input() input n=len(s) n len(s) len s X=[] X [] for i in range(n):
  X.append('x') i range(n) range n X.append('x') X.append X append 'x' print(''.join(X)) print ''.join(X) ''.join '' join X n=len(s) len(s) n s=input() input() s X=[] [] X
s=input()
n=len(s)
X=[]
for i in range(n):
  X.append('x')
print(''.join(X))