#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

int n, m, a;

int main() {
	cin >> n >> m >> a;
	for (int i = 0; i <= n; ++i)
		for (int j = 0; j <= m; ++j) {
			if (m*i + n*j - 2*i*j == a) {
				cout << "Yes\n";
				return 0;
			}
		}

	cout << "No\n";
	return 0;
}
