UVa 11044

#include<stdio.h>
int main()
{
    int t,n,m,i,x,y;
    scanf("%d",&t);
    for(i=1;i<=t;i++){
        scanf("%d %d",&n,&m);
        x=n/3;
        y=m/3;
        printf("%d\n",x*y);
    }
    return 0;
}