#include <iostream>
#include <vector>
using namespace std;
int getprofit(int b , int s , int c)
{
	int sum = b + s;
	int profit = sum - c;
	return profit;
}
int main()
{
	int t;
	cin>>t;
	vector<int> ans;
	for(int i=0;i<t;i++)
	{
		int b,s,c;
		cin>>b>>s>>c;
		int a = getprofit(b,s,c);
		ans.push_back(a);
	}
	for(int j=0;j<ans.size();j++)
	{
		cout<<ans[j]<<endl;
	}
}