#include<bits/stdc++.h>
using namespace std;

//#define int long long

typedef pair<int,int>pint;
typedef vector<int>vint;
typedef vector<pint>vpint;
#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define all(v) (v).begin(),(v).end()
#define rep(i,n) for(int i=0;i<(n);i++)
#define reps(i,f,n) for(int i=(f);i<(n);i++)
#define each(it,v) for(__typeof((v).begin()) it=(v).begin();it!=(v).end();it++)
template<class T,class U>void chmin(T &t,U f){if(t>f)t=f;}
template<class T,class U>void chmax(T &t,U f){if(t<f)t=f;}

void YES(){cout<<"YES"<<endl;}
void NO(){cout<<"NO"<<endl;}

signed main(){
    cin.tie();
    ios_base::sync_with_stdio(0);

    int H,W,C;cin>>H>>W>>C;
    
    if(H*W==2)YES();
    else if(H==1||W==1)NO();
    else if(H*W%2==0)YES();
    else NO();
    return 0;
}