#include<stdio.h>
int main()
{
    int T,A,B,C;
    int k=2;
    scanf("%d",&T);
    for(int i=1;i<=T;i++)
    {
        scanf("%d%d%d",&A,&B,&C);
        int cal1=A-k;
        int cal2=B-k;
        int cal3=C-k;
        int calculation=cal1-cal2-cal3;
        if(calculation==0)
        {
            printf("%d",calculation);
        }
        else
        {
            printf("%d",1);
        }
    }
}