#include <iostream>
#include <fstream>
using namespace std;

int main()
{
    ifstream in("fructe.in");
    ofstream out("fructe.out");
    int x,t,i,y;
    in>>t;
    for (i=1; i<=t; i++)
    {
        in>>x;
        in>>y;
        if ((x+y)%2==0)
        {
            out<<"1\n";
        }
        else
        {
            out<<"0\n";
        }
    }
}