<?php
fscanf(STDIN, "%d %d", $a, $b);

$c = $a + $b;

$endFlg = false;
$d = $c;

while ($endFlg = false) {
  $d = $d % 2;
  if ($d <= 1) {
    $endFlg = true;
  }
}

$result = ($d == 0) ? "Odd" : "Even";

# 出力
echo $result;
?>