Two squares of a chessboard are given. If they are colored in the same color, then output the word YES, and if they are in different colors – then NO.
Input data: 4 numbers are entered - the coordinates of the cells.
Output: Print the answer to the problem.
Examples
| # |
Input |
Output |
| 1 |
1
1
2
2 |
YES |
| 2 |
1
1
2
3 |
NO |