Chess board – same color

Chess board – same color. Given two cells of a chessboard. If they are painted in one color, print the word YES, and if in a different color – NO.

The program receives the input of four numbers from 1 to 8, each specifying the column and row number, first two – for the first cell, and then the last two – for the second cell.

Input

Correct answer

1
1
2
6

YES

2
2
2
5

NO

2
2
2
4

YES

 

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