#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 t;
    cin>>t;
    for(int i=0;i<t;i++)
    {
        int b,s,c;
        cin>>b>>s>>c;
        int ans;
        ans=c-b-s;
        ans=(-1)*ans;
        cout<<ans<<"\n";
    }
    return 0;
}