func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     long long a, b, c;     cin >> a >> b >> c;     long long m, mi, mid;     long long v[3];     v[0] = a;     v[1] = b;     v[2] = c;     sort(v, v + 3);     a = v[2];     b = v[0];     c = v[1];     if (a - b < c) {       cout <<  0 ;     } else {       m = a - b - c + 1;       cout << m;     }     return 0;   }   