Problem:
Range

Write a program which reads three integers a, b and c, and prints "Yes" if a < b < c, otherwise "No".

Input

Three integers a, b and c separated by a single space are given in a line.

Output

Print "Yes" or "No" in a line.

Constraints

0 ≤ a, b, c ≤ 100

Sample Input 1

1 3 8

Sample Output 1

Yes

Sample Input 2

3 8 1

Sample Output 2

No

Solution in PHP (judge verdict: Wrong Answer)

<?php
list($a, $b, $c) = explode(" ", trim(fgets(STDIN)));

if($a < $b && $b < $c){
  echo "YES";
}else{
  echo "NO";
}