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

$stdin = trim(fgets(STDIN));

$nums = explode(' ', $stdin);

$a = $nums[0];

$b = $nums[1];

$c = $nums[2];

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