Write a program to check whether a triangle is valid or not, when the three positive angles of the triangle are the inputs. A triangle is valid if the sum of all the three angles is equal to 180 degrees.

Constraints

1 A,B,C 180

Input Format

Line contains three angles A, B and C, of the triangle separated by space.

Output Format

Display 'YES' if the triangle is valid, and 'NO', if it is not.

Sample #1

Input

180 1 1

Output

NO

Sample #2

Input

40 40 100

Output

YES