#include <bits/stdc++.h>
using namespace std;
int n,m,k;
int main() {
	scanf("%d %d %d",&n,&m,&k);
	bool ans=0;
	for (int a=0;a<=m;a++)
		for (int b=0;b<=n;b++) {
			if (a*n+b*m-2*a*b==k) {
				ans=1;
				break;
			}
		}
	if (ans)
		printf("Yes\n");
	else printf("No\n");
	return 0;
}