import java.io.*;
import java.util.*;
public class Solution 
{
    public static void main(String[] args)
    {
        Scanner in = new Scanner(System.in);
        int t = in.nextInt();
        int ar[]=new int[t];
        int res=0;
        for(int a0 = 0; a0 < t; a0++)
        {
            int b = in.nextInt();
            int s = in.nextInt();
            int c = in.nextInt();
            res=b+s-c;
            ar[a0]=res;
            res=0;
        }
        for(int i=0;i<t;i++)
        {
            System.out.println(ar[i]);
        }
    }
}