1 #include<stdio.h>
 2 int main()
 3 {
 4     int n;
 5     scanf("%d",&n);
 6     while(n--)
 7     {
 8         int a,b;
 9         char s;
10         scanf("%x%c%x",&a,&s,&b);
11         if(s==‘+‘)
12             printf("%o\n",a+b);
13         else
14             printf("%o\n",a-b);
15     }
16 }