#include<bits/stdc++.h>
using namespace std;
int main(){
    int x1,y1,x2,y2,x3;
    cin>>x1>>y1>>x2>>y2>>x3;
    if(x3*y1/2==x3*y2/2){
        cout<<"Yes"<<endl;
    }
    else{
        cout<<"No"<<endl;
    }
    return 0;
}