> #include<stdio.h>
> 
> int main()
> {
>     int n;
>     int a,b;
>     scanf("%d",&n);
>     while(n--)
>     {
>         scanf("%d:%d",&a,&b);
> 
>         if(b!=0){
>             printf("0\n");
>             continue;
>         }
> 
>         printf("%d\n",(a+11)%24+1);
>     }
>     return 0;
> }