参考答案：

#include<iostream>

using namespace std;

int main()
{
    int a, b, c;

    cin >> a >> b >> c;
    if ((c - (abs(a) + abs(b))) % 2 == 0 && c >= (abs(a) + abs(b))) cout << "Yes";
    else cout << "No";

    return 0;
}

Python:

a, b, n = map(int,input().split())
min_step = abs(a) + abs(b)
if n >= min_step and (n - min_step)%2 == 0:
    print("Yes")
else:
    print("No")