<?php
/**
 * Created by PhpStorm.
 * User: souta
 * Date: 2018/02/13
 * Time: 9:30
 */

# スペース区切りの整数の入力
fscanf(STDIN, "%d %d", $a, $b);

if( ($a+$b)%2 == 0 ){
    echo 'Even'."\n";
}else{
    echo 'Odd'."\n";
}

?>