#include<stdio.h>
long p,b,k,i;
int main()
{
	freopen("fructe.in","r",stdin);
	freopen("fructe.out","w",stdout);
	scanf("%ld",&k);
	for(i=1;i<=k;i++)
		{
			scanf("%ld%ld",&p,&b);
			if(p%2!=b%2)
			{
				if(p%2==1)
					printf("0\n");
					else printf("1\n");
			}
			else
			{
				if(p%2==0 && b%2==0)
					printf("0\n");
					else printf("1\n");
			}
		}
	return 0;
}