#include<bits/stdc++.h>

using namespace std;

int main()
{
    int kase;
    scanf("%d",&kase);

    while(kase--)
    {
        int x,y;
        scanf("%d %d",&x,&y);

        printf("%d\n",(x/3)*(y/3));

    }



    return 0;
}

Line 23: error: bits/stdc++.h: No such file or directory