S=input()
list_s = list(S)
for i in range(0, len(list_s)):
    list_s[i] = "x"

print(''.join(list_s)) S=input() S input() input list_s = list(S) list_s list(S) list S for i in range(0, len(list_s)):
    list_s[i] = "x" i range(0, len(list_s)) range 0 len(list_s) len list_s list_s[i] = "x" list_s[i] list_s i "x" print(''.join(list_s)) print ''.join(list_s) ''.join '' join list_s S=input() input() S list_s = list(S) list(S) list_s
S=input()
list_s = list(S)
for i in range(0, len(list_s)):
    list_s[i] = "x"

print(''.join(list_s))