Problem:
Score : 100 points

Problem Statement

You are given integers A and B, each between 1 and 3 (inclusive).

Determine if there is an integer C between 1 and 3 (inclusive) such that A \times B \times C is an odd number.

Constraints

All values in input are integers.

1 \leq A, B \leq 3

Input

Input is given from Standard Input in the following format:

A B

Output

If there is an integer C between 1 and 3 that satisfies the condition, print Yes; otherwise, print No.

Sample Input 1

3 1

Sample Output 1

Yes

Let C = 3. Then, A \times B \times C = 3 \times 1 \times 3 = 9, which is an odd number.

Sample Input 2

1 2

Sample Output 2

No

Sample Input 3

2 2

Sample Output 3

No

Solution in PHP7 (7.0.15) (judge verdict: Accepted)

<?php
class In {
    private $array = [];
    private $length = 0;
    private $count = 0;

    function __construct()	{
		$str = trim(fgets(STDIN));
        $this->array = explode(' ', $str);
        $this->length = count($this->array);
    }
    
    public function get(int $i){
        $this->array[$i];
    }

    public function next() {
        return $this->array[$this->count++];
    }
    public function hasNext() {
        return $this->count < $this->length;
    }
    public function nextInt() {
        return (int)$this->next();
    }
    public function nextDouble() {
        return (double)$this->next();
    }
    public function nextString() {
        return (string)$this->next();
    }
}

class Out {
    public static function line($str = "") {
        echo $str . PHP_EOL;
    }
}

$in = new In();
if($in->nextInt() * $in->nextInt() % 2 == 1){
    Out::line("Yes");
}else{
    Out::line("No");
}