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#include<bits/stdc++.h>
using
namespace
std
;
char
s
[
50
]
;
int
main
(
)
{
int
test,len
;
scanf
(
"%d"
,
&
test
)
;
getchar
(
)
;
while
(
test
--
)
{
gets
(
s
)
;
len
=
strlen
(
s
)
;
if
(
len
==
1
||
len
==
2
)
{
printf
(
"+
\n
"
)
;
}
else
if
(
s
[
len
-
2
]
==
'3'
&&
s
[
len
-
1
]
==
'5'
)
{
printf
(
"-
\n
"
)
;
}
else
if
(
s
[
0
]
==
'9'
&&
s
[
len
-
1
]
==
'4'
)
{
printf
(
"*
\n
"
)
;
}
else
{
printf
(
"?
\n
"
)
;
}
}
return
0
;
}