#include <vector>
#include <list>
#include <map>
#include <set>
#include <deque>
#include <stack>
#include <bitset>
#include <algorithm>
#include <functional>
#include <numeric>
#include <utility>
#include <sstream>
#include <iostream>
#include <iomanip>
#include <cstdio>
#include <cmath>
#include <cstdlib>
#include <cctype>
#include <string>
#include <cstring>
#include <ctime>
#include <fstream>
#include <queue>
#include <complex>

#define INF 100000000
#define EPS 1e-9

using namespace std;

typedef long long ll;
typedef complex<double> P;

int N, M, C;

int main(){

	cin >> N >> M >> C;

	if (N >= 2 && M >= 2){

		if (N % 2 == 1 && M % 2 == 1)
			cout << "NO" << endl;
		else
			cout << "YES" << endl;

	}

	else{
		cout << "NO" << endl;
	}

	return 0;

}