func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int t;     cin >> t;     while (t--) {       int n, x, a, b;       cin >> n >> x >> a >> b;       if (abs(a - b) + x >= n)         cout << n - 1 << endl;       else {         cout << abs(a - b) + x << endl;       }     }   }   