func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     long int a, b, c;     cin >> a >> b >> c;     a = abs(a) + abs(b);     if (a > c)       cout <<  NO  << endl;     else {       if ((c - a) % 2 == 0)         cout <<  YES  << endl;       else         cout <<  NO  << endl;     }   }   