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: Accepted)

<?php
$stdin = trim(fgets(STDIN));
(int)$input = explode(" ", $stdin);

if($input[0] < $input[1] && $input[1] < $input[2]) echo'Yes';
else echo'No';
?>