S = len(eval(input()))

cnt = ""

length = 0

a = "x"

for i in range(S):

    cnt = cnt + a

print(cnt)
S = eval(input())

leng = len(S)

ans = ''



for n in range(leng):

    ans += 'x'



print(ans)
S = len(eval(input()))
cnt = ""
length = 0
a = "x"
for i in range(S):
    cnt = cnt + a
print(cnt)

S = eval(input())
leng = len(S)
ans = ""
for n in range(leng):
    ans += "x"
print(ans)

-S = len(eval(input())) -cnt = "" -length = 0 -a = "x" -for i in range(S): -    cnt = cnt + a -print(cnt) +S = eval(input()) +leng = len(S) +ans = "" +for n in range(leng): +    ans += "x" +print(ans)