#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;
int profit(int b,int s,int c){
    return (b+s-c);
}

int main() {
    int t; 
    cin>>t;
    int b[t],s[t],c[t];
    for(int i=0;i<t;i++){
        cin>>b[i]>>s[i]>>c[i];
    }
    for(int i=0;i<t;i++){
        cout<<profit(b[i],s[i],c[i])<<endl;
    }
    return 0;
}