#include <bits/stdc++.h>
using namespace std;
int main() {
	int N, M, K;
	cin >> N >> M >> K;
	for (int i = 0; i <= N; ++ i) {
		for (int j = 0; j <= M; ++ j) {
			if (i*M + j*N - 2*i*j == K) {
				cout << "Yes" << endl;
				return 0;
			}
		}
	}
	cout << "No" << endl;
}
