Contest: Task: Related: TaskB

Score : $100$ points

Problem Statement

Three people, A, B and C, are trying to communicate using transceivers. They are standing along a number line, and the coordinates of A, B and C are $a$, $b$ and $c$ (in meters), respectively. Two people can directly communicate when the distance between them is at most $d$ meters. Determine if A and C can communicate, either directly or indirectly. Here, A and C can indirectly communicate when A and B can directly communicate and also B and C can directly communicate.


  • $1$ $≤$ $a,b,c$ $≤$ $100$
  • $1$ $≤$ $d$ $≤$ $100$
  • All values in input are integers.


Input is given from Standard Input in the following format:

$a$ $b$ $c$ $d$


If A and C can communicate, print Yes; if they cannot, print No.

Sample Input 1

4 7 9 3

Sample Output 1


A and B can directly communicate, and also B and C can directly communicate, so we should print Yes.

Sample Input 2

100 10 1 2

Sample Output 2


They cannot communicate in this case.

Sample Input 3

10 10 10 1

Sample Output 3


There can be multiple people at the same position.

Sample Input 4

1 100 2 10

Sample Output 4