func_code_string: #include <bits/stdc++.h>   using namespace std;   int x, y;   long long s;   int main() {     cin >> x >> y >> s;     if (abs(x) + abs(y) <= s && (s - (abs(x) + abs(y))) % 2 == 0)       cout <<  Yes ;     else       cout <<  No ;     return 0;   }   