Problem Statement

This problem is worth 5 tokens.

Input Format

Your first line of input will contain 3 positive space-separated integers.

Sample Cases

Input 1

99 20 101

Output 1

yes

Input 2

1 2 3

Output 2

no

Input 3

77 36 85

Output 3

yes

Input 4

77 85 36

Output 4

yes

Input 5

36 77 85

Output 5

yes