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
// Here your code !
$input = explode(" ",trim(fgets(STDIN)));
$a = $input[0];
$b = $input[1];
$c = $input[2];

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