func_code_string: #include <bits/stdc++.h>   using namespace std;   const int inf = 0x3f3f3f3f;   const int MAXN = 1e6;   int solve(int a, int b, int c) {     if (b < a) swap(a, b);     int dis = b - a;     int statr = 1;     int all = dis * 2;     int res = 0;     if (a - dis >= 1 || c > 2 * dis) return -1;     if (c > dis) res = c - dis;     if (c <= dis) res = c + dis;     return res;   }   int main() {     int t;     cin >> t;     while (t--) {       int a, b, c;       cin >> a >> b >> c;       cout << solve(a, b, c) << endl;     }     return 0;   }   