s = input()
l = len(s)
ss = ""
for x in range(l):
    ss = ss+'x'
print(ss) s = input() s input() input l = len(s) l len(s) len s ss = "" ss "" for x in range(l):
    ss = ss+'x' x range(l) range l ss = ss+'x' ss ss+'x' ss 'x' print(ss) print ss l = len(s) len(s) l s = input() input() s ss = "" "" ss ss = ss+'x' ss+'x' ss
s = input()
l = len(s)
ss = ""
for x in range(l):
    ss = ss+'x'
print(ss)