#include <fstream>

using namespace std;

ifstream fin("fructe.in");
ofstream fout("fructe.out");

int main()
{
    int n, a, b, i;
    fin >> n;
    for (i = 1; i <= n; ++ i)
        {
         fin >> a >> b;
         if ((a + b) % 2 == 1) fout << 0 << "\n";
         else fout << 1<< "\n";
        }
    fin.close();
    fout.close();
    return 0;
}