#include<iostream>
#include<iomanip>
#include<string>
#include<algorithm>
#include<vector>
#include<set>
#include<list>
#include<queue>
#include<math.h>
#include<bitset>
using ll = long long;
using namespace std;

int main(){
    ll n, m, c;
    cin >> n >> m >> c;
    if (n == 1){
        if (m != 2 && c != 2) cout << "NO" << endl;
    } else if (m == 1){
        if (n != 2 && c != 2) cout << "NO" << endl;
    } else if ((n%2) && (m%2)) {
        cout << "NO" << endl;
    } else cout << "YES" << endl;
}