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 = fgets(STDIN);
$array = explode(" ", $input);
if ($array[0] < $array[1] && $array[1] < $array[2]) {
    echo 'Yes';
}else {
    echo 'No';
}
?>