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 Go (1.6) (judge verdict: Accepted)

package main

import (
	"bufio"
	"fmt"
	"os"
	"strconv"
)

var sc = bufio.NewScanner(os.Stdin)

func getInput() (int, int, error) {
	sc.Split(bufio.ScanWords)
	a := make([]int, 2)
	for i := range a {
		sc.Scan()
		n, err := strconv.Atoi(sc.Text())
		a[i] = n
		if err != nil {
			return 0, 0, err
		}
	}
	return a[0], a[1], nil
}

func main() {

	a, b, err := getInput()
	if err != nil {
		fmt.Printf("error: %s\n", err)
		return
	}

	if (a*b)&0x00000001 == 1 {
		fmt.Println("Odd")
		return
	}

	fmt.Println("Even")

}