#include <fstream>

using namespace std;
ifstream f("fructe.in");
ofstream g("fructe.out");
int t,b,p;
int main()
{
    f>>t;
    while(t--)
    {
        f>>p>>b;
        if(((p%2)==0)&&((b%2)==0))g<<1;
        else if(((p%2)==1)&&((b%2)==0))g<<0;
        else if(((p%2)==0)&&((b%2)==1))g<<0;
        else g<<1;
        g<<endl;
    }
    return 0;
}