#include <cstdio>

FILE *in = fopen("fructe.in","r"), *out = fopen("fructe.out","w");

int t;
int p, b;

int main()
{
    fscanf(in, "%d", &t);

    while ( t-- )
    {
        fscanf(in, "%d %d", &p, &b);

        if ( p == b )
            fprintf(out, "%d\n", p % 2);
        else if ( p > b )
            fprintf(out, "%d\n", b % 2);
        else
            fprintf(out, "%d\n", p % 2);

    }

	return 0;
}