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: Wrong Answer)

$input = fgets(STDIN, 4096);
$numbers = explode(' ', $input);
$prev = 0;
$output = 'Yes';
foreach($numbers as $number) {
    $number = intval($number);
    if ($number <= $prev) {
        $output = 'No';
        break;
    }
    $prev = $number;
}
print($output . "\n");