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

$a = (int) $a;
$b = (int) $b;
$c = (int) $c;

if ($a < $b && $b < $c) {
    echo "Yes\n";
} else {
    echo "No\n";
}
?>