Check out example codes for "snakify answers". It will help you in understanding the concepts better.

Code Example 1

x1 = int(input())
y1 = int(input())
x2 = int(input())
y2 = int(input())
if abs(x1 - x2) == abs(y1 - y2) or x1 == x2 or y1 == y2:
    print('YES')
else:
    print('NO')

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