#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;


int main() {
    /* Enter your code here. Read input from STDIN. Print output to STDOUT */   
    int n ;
    cin >> n ;
    while(n){
        int a ,b ,c ;
        cin >> a >> b >> c;
        // a = x1 + ans 
        // b = x2 + ans 
        // c = x1+x2 + ans
        int x1 = c-b;
        cout << a-x1 <<endl; 
        n--;
    }
    return 0;
}