#!/usr/bin/env python3
v1 = int(input())
v2 = int(input())
v3 = int(input())
v4 = int(input())
k = int(input())

ans = 0

c1 = (1 if abs(v1 - v2) <= k else 0) + (1 if abs(v3 - v4) <= k else 0)
ans = max(ans, c1)

c2 = (1 if abs(v1 - v3) <= k else 0) + (1 if abs(v2 - v4) <= k else 0)
ans = max(ans, c2)

c3 = (1 if abs(v1 - v4) <= k else 0) + (1 if abs(v2 - v3) <= k else 0)
ans = max(ans, c3)

print(ans)