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
$input = trim(fgets(STDIN));
list($a,$b,$c) = explode(" ", $input);
if($a < $b){
    if($b < $c){
    echo "Yes\n";
    }else{
        echo "No\n";
    }
}else{
    echo "No\n";
}