#include <bits/stdc++.h>
using namespace std;
long long x, y, z, a, b, c, s, s1;
int main() {
  cin >> x >> y >> z >> a >> b >> c;
  s = abs(x - y) * a;
  s1 += abs(z - x) * b;
  s1 += 3 * c;
  s1 += abs(x - y) * b;
  if (s1 <= s)
    cout << "YES";
  else
    cout << "NO";
}
