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 JavaScript (node.js v5.12) (judge verdict: Accepted)

function main(input) {
	// 入力
	input = input.split(" ");
	var a = parseInt(input[0], 10);
	var b = parseInt(input[1], 10);
	var s = (a * b) / 2;
	// 出力
	if (Number.isInteger(s) == true) {
		console.log('Even');
	} else {
		console.log('Odd');
	}
}
main(require('fs').readFileSync('/dev/stdin', 'utf8'));