Problem:
Score : 100 points

Problem Statement

AtCoDeer the deer found two positive integers, a and b.
Determine whether the product of a and b is even or odd.

Constraints

1 ≤ a,b ≤ 10000

a and b are integers.

Input

Input is given from Standard Input in the following format:

a b

Output

If the product is odd, print Odd; if it is even, print Even.

Sample Input 1

3 4

Sample Output 1

Even

As 3 × 4 = 12 is even, print Even.

Sample Input 2

1 21

Sample Output 2

Odd

As 1 × 21 = 21 is odd, print Odd.

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

<?php
$input=explode(' ',trim(fgets(STDIN)));
//trim = 空白文字を取り除く
//fgets = ファイルから一行取り除く
//STDIN = input streamみたいなもので標準入力（standard input）とも言われます。
if(($input[0] * $input[1])%2 == 0){
    echo "Even";
}else{
    echo 'Odd';
}
?>