S=input()
a=[]
for i in range(len(S)):
    a.append('x')
print(''.join(a)) S=input() S input() input a=[] a [] for i in range(len(S)):
    a.append('x') i range(len(S)) range len(S) len S a.append('x') a.append a append 'x' print(''.join(a)) print ''.join(a) ''.join '' join a S=input() input() S a=[] [] a
S=input()
a=[]
for i in range(len(S)):
    a.append('x')
print(''.join(a))