S = input()
l = len(S)
a = ''
for i in range(len(S)):
    a = a + 'x'
print(a)     S = input() S input() input l = len(S) l len(S) len S a = '' a '' for i in range(len(S)):
    a = a + 'x' i range(len(S)) range len(S) len S a = a + 'x' a a + 'x' a 'x' print(a) print a l = len(S) len(S) l a = a + 'x' a + 'x' a S = input() input() S a = '' '' a
S = input()
l = len(S)
a = ''
for i in range(len(S)):
    a = a + 'x'
print(a)    