Two children are playing tag on a number line. (In the game of tag, the child called "it" tries to catch the other child.) The child who is "it" is now at coordinate A, and he can travel the distance of V per second. The other child is now at coordinate B, and she can travel the distance of W per second.

He can catch her when his coordinate is the same as hers. Determine whether he can catch her within T seconds (including exactly T seconds later). We assume that both children move optimally.

Constraints

* -10^9 \leq A,B \leq 10^9
* 1 \leq V,W \leq 10^9
* 1 \leq T \leq 10^9
* A \neq B
* All values in input are integers.

Input

Input is given from Standard Input in the following format:


A V
B W
T


Output

If "it" can catch the other child, print `YES`; otherwise, print `NO`.

Examples

Input

1 2
3 1
3


Output

YES


Input

1 2
3 2
3


Output

NO


Input

1 2
3 3
3


Output

NO
import java.util.*;
import java.io.*;
import java.math.*;
public class Main{
  //↓見なくていいよ！ここから------------------------------------------
  static public class InputIterator{
    ArrayList<String> inputLine = new ArrayList<String>(1024);
    int index = 0; int max;
    InputIterator(){
      BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
      while(true){
        String read;
        try{
          read = br.readLine();
        }catch(IOException e){
          read = null;
        }
        if(read != null){
          inputLine.add(read);
        }else{
          break;
        }
      }
      max = inputLine.size();
    }
    public boolean hasNext(){return (index < max);}
    public String next(){
      if(hasNext()){
        String returnStr = inputLine.get(index);
        index++;
        return returnStr;
      }else{
        throw new IndexOutOfBoundsException("これ以上入力はないよ。");
      }
    }
  }
  
  static InputIterator ii = new InputIterator();//リアクティブでは使えないので諦めてScanner使うこと
  static PrintWriter out = new PrintWriter(System.out);
  static void flush(){out.flush();}
  static void myout(Object t){out.println(t);}
  static void myerr(Object t){System.err.println(t);}
  static String next(){return ii.next();}
  static int nextInt(){return Integer.parseInt(next());}
  static long nextLong(){return Long.parseLong(next());}
  static ArrayList<String> nextStrArray(){return myHanSpSplit(next());}
  static ArrayList<String> myHanSpSplit(String str){return new ArrayList<String>(Arrays.asList(str.split(" ")));}
  static ArrayList<String> nextCharArray(){return mySingleSplit(next());}
  static ArrayList<String> mySingleSplit(String str){return new ArrayList<String>(Arrays.asList(str.split("")));}
  static ArrayList<Integer> nextIntArray(){
    ArrayList<Integer> ret = new ArrayList<Integer>();
    ArrayList<String> input = nextStrArray();
    for(int i = 0; i < input.size(); i++){
      ret.add(Integer.parseInt(input.get(i)));
    }
    return ret;
  }
  static ArrayList<Long> nextLongArray(){
    ArrayList<Long> ret = new ArrayList<Long>();
    ArrayList<String> input = nextStrArray();
    for(int i = 0; i < input.size(); i++){
      ret.add(Long.parseLong(input.get(i)));
    }
    return ret;
  }
  static String kaigyoToStr(String[] list){return String.join("\n",list);}
  static String kaigyoToStr(ArrayList<String> list){return String.join("\n",list);}
  static String hanSpToStr(String[] list){return String.join(" ",list);}
  static String hanSpToStr(ArrayList<String> list){return String.join(" ",list);}
  public static void main(String[] args){
    solve();
    flush();
  }
  //↑見なくていいよ！ここまで------------------------------------------
  static public void solve(){//ここがメイン関数代わり
    ArrayList<Long> one = nextLongArray();
	long A = one.get(0);
	long V = one.get(1);
	ArrayList<Long> two = nextLongArray();
	long B = two.get(0);
	long W = two.get(1);
	long T = nextInt();
	if(A < B){
		long nextA = A + (V * T);
		long nextB = B + (W * T);
		if(nextA < nextB){
			myout("NO");
		}else{
			myout("YES");
		}
	}else{
		long nextA = A - (V * T);
		long nextB = B - (W * T);
		if(nextA > nextB){
			myout("NO");
		}else{
			myout("YES");
		}
	}
  }
  //Method addition frame start

  //Method addition frame end
}
