#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); ++i)
int main() {
    // Input
    int X1, Y1, X2, Y2, X3;
    cin >> X1 >> Y1 >> X2 >> Y2 >> X3;

    // Output
    int OAC = X3 * Y1 / 2;
    int OBC = X3 * Y2 / 2;
    cout << (OAC == OBC ? "Yes" : "No") << endl;
}