Div 2 Problem C

#include<cstdio>
int main()
{
    int test,t=0,a,b,p;
    scanf("%d",&test);
    while(test--)
    {
        scanf("%d%d",&a,&b);
        p=(a+b)%3;
        if(p==0)
            printf("Case %d# All Groups Are OK\n",++t);
        else
            printf("Case %d# %d\n",++t,p);
    }
    return 0;
}