#include<cstdio>
int main(){
    int a,b,e,f,g,h;
    scanf("%d",&b);
    while(b--){
        scanf("%d%d",&e,&f);
        /*g=e*f;
        g*=2;
        if(e==f){
            h=e*e*2;
        }
        else if(f>e){
            h=e*f*2;
        }
        else {
            h=f*e*2;
        }*/
        //printf("%d %d\n",g,h);
        printf("%d\n",e*f*2);
    }
    return 0;
}