A - Plus or Minus

#include <bits/stdc++.h>
 
using namespace std;
 
int main(){
    cin.tie(nullptr), ios::sync_with_stdio(false);
    int t, a, b, c;
    cin >> t;
    while(t--){
        cin >> a >> b >> c;
        if(a + b == c) cout << "+\n";
        else cout << "-\n";
    }
}