#include <iostream>
#include <cstdio>
#include <cstdlib>
#include <algorithm>
using namespace std;
int t;
int main(int argc, char *argv[]) {
    int i,j,x,y;
    scanf("%d",&t);
    for(i=0;i<t;i++)
    {scanf("%d%d",&x,&y);
     if(x<0)x=-x;
     if(y<0)y=-y;
     printf("%d\n",x*y*2);}
    return 0;
}