/// Author : Md .shohanur Rahaman
/// UriOj Problem No : 1192
/// Problem Name : Paula's Mathematic Game
/// Problem Type : AdHoc

#include<stdio.h>
#include<ctype.h>
int main()
{
      char c;
      int i,test,a,b;
      while(scanf("%d",&test)==1){
            for(i=1;i<=test;i++){
                  scanf("%d %c %d",&a,&c,&b);
            if(a>=0 && a<=9 && b>=0 && b<=9){
                              if(a==b)
                                    printf("%d\n",a*b);
                              else if(islower(c))
                                    printf("%d\n",a+b);
                              else if(isupper(c))
                                    printf("%d\n",b-a);
           }
      }
}
return 0;
}