#include "bits/stdc++.h"

#define SORT(vec) sort(vec.begin(), vec.end());
typedef long long ll;

using namespace std;
int main() {
	cin.tie(0);
   	ios::sync_with_stdio(false);
//  --------------------------------------

	int N, M, C; cin >> N >> M >> C;
	string ans;
		
	if (N == 1 || M == 1)
	{
		ans = "NO";
	}
	else if( N % 2 == 0 || M % 2 == 0)
	{
		ans = "YES";
	}
	else
	{
		ans = "NO";
	}

	cout << ans << "\n";
}