401732: GYM100519 D Do it Right!

Given two distinct positive integers A and B, find out if it is possible to find a third positive integer C so that a triangle with the sides A, B and C is a right triangle. Remember that a triangle is called a right triangle if one of its angles equals to 90 degrees.

The first line of input contains two positive integers A and B: the lengths of the two given sides (1 ≤ A < B ≤ 100).

Output "YES" if it is possible to find such an integer C, or "NO" otherwise.

3 4

YES

1 2

NO

• In the first example, we can take C = 5.
• In the second example, it is impossible to find an integer C with the required property.