#include <bits/stdc++.h>
using namespace std;
int main()
{
int tc;
char s[2000],l;
cin>>tc;
while (tc--)
{
scanf("%s", s);
l = strlen(s);
if (strcmp(s, "1") == 0 || strcmp(s, "4") == 0 || strcmp(s, "78") == 0)
printf("+\n");
else if ( s[l - 1] == '5' && s[l - 2] == '3')
printf("-\n");
else if (s[0] == '9' && s[l - 1] == '4')
printf("*\n");
else if (s[0] == '1' && s[1] == '9' && s[2] == '0')
printf("?\n");
else
printf("+\n");
}
return 0;
}
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