s=str(input())
x=len(s)
s1=''
for i in range(0,x):
    s1+='x'
print(s1) s=str(input()) s str(input()) str input() input x=len(s) x len(s) len s s1='' s1 '' for i in range(0,x):
    s1+='x' i range(0,x) range 0 x s1+='x' s1 'x' print(s1) print s1 s=str(input()) str(input()) s x=len(s) len(s) x s1='' '' s1 s1+='x' 'x' s1
s=str(input())
x=len(s)
s1=''
for i in range(0,x):
    s1+='x'
print(s1)
