func_code_string: #include <bits/stdc++.h>   using namespace std;   int min(int a, int b) {     if (a <= b) {       return a;     } else {       return b;     }   }   int max(int a, int b) {     if (a >= b) {       return a;     } else {       return b;     }   }   int main() {     int l, r, a;     cin >> l >> r >> a;     int MAX, MIN;     int count;     MAX = max(l, r);     MIN = min(l, r);     MIN += a;     if (MIN > MAX) {       count = (2 * MAX) + ((MIN - MAX) / 2) * 2;     } else {       count = MIN * 2;     }     cout << count << endl;     return 0;   }   