#include <bits/stdc++.h>
using namespace std;
int inti(int a, int b) { return ((a - b) < 0 ? (b - a) : (a - b)); }
int main() {
  int x, y, z, t1, t2, t3;
  cin >> x >> y >> z >> t1 >> t2 >> t3;
  if ((inti(x, y)) * t1 < (3 * t3 + t2 * (inti(x, z) + inti(x, y))))
    cout << "NO";
  else
    cout << "YES";
  return 0;
}
