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.
a,b,c,d=map(int,input().split())

if abs(c-a)<d:
  print('Yes')
elif abs(c-b)<d and abs(b-a)<d:
  print('Yes')
else:
  print('No')
a,b,c,d=map(int,input().split())

if abs(c-a)<=d:
  print('Yes')
elif abs(c-b)<=d and abs(b-a)<=d:
  print('Yes')
else:
  print('No')