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showyou/abc097_a.py

Created May 12, 2018 13:45
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abc097_a.py
a, b, c, d = map(int, input().split())
f = False
if abs(a - c) <= d:
f = True
if abs(a-b) <= d and abs(b-c) <= d:
f = True
if f:
print("Yes")
else:
print("No")
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