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.
import sys
input = sys.stdin.readline
a, b, c, d = [int(x) for x in input().split()]
if abs(c - a) <= d or abs(b - a) + abs(c - b) <= d:
    print("Yes")
else:
    print("No") 
import sys
input = sys.stdin.readline
a, b, c, d = [int(x) for x in input().split()]
if abs(c - a) <= d or (abs(b - a) <= d and abs(c - b) <= d):
    print("Yes")
else:
    print("No") 