#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>

int main() {
    int numCases;
    std::cin >> numCases;
    
    for (int i = 0; i < numCases; ++i) {
        int costBurger;
        int costSoda;
        int costCombo;
        std::cin >> costBurger >> costSoda >> costCombo;
        
        
        
        std::cout << ((costBurger + costSoda) - costCombo) << std::endl;
    }
    
    return 0;
}