#include <iostream>

using namespace std;


int n,m,k;

int main(){
	cin >> n >> m >> k;
	
	for(int i=0;i<=m;i++){
		for(int j=0;j<=n;j++){
			if(i*n+j*m-2*i*j==k){
				cout << "Yes" << endl;
				return 0;
			}
		}
	}
	
	cout << "No" << endl;
	
}