Problems
Rectangular or not?
Rectangular or not?
The lengths of the sides of a triangle are given. Determine, if this triangle is rectangular.
Input data
Three positive integers — the lengths of sides of triangle. The lengths of the sides do not exceed 1000.
Output data
Print "YES" if triangle is rectangular, or "NO" otherwise.
Examples
Input example #1
3 5 4
Output example #1
YES
Input example #2
3 5 5
Output example #2
NO