406846: GYM102569 K Table

There are 4 bars, possibly, having different lengths. Can they be used as the legs of the table, such that:

• The legs stay vertically in the vertices of some rectangle;
• The surface of the table, possibly, sloping, touches all four legs?

The input contains 4 integers $$$a_1$$$, $$$a_2$$$, $$$a_3$$$, $$$a_4$$$ ($$$1 \le a_i \le 10^9$$$) — the lengths of the bars.

Output "YES" or "NO", depending on it is possible to make a table with the given design or not.

1 1 1 1

YES

1 5 1 5

YES

1 3 2 2

YES

9 5 11 8

NO