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: Wrong Answer)

package main

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

var sc = bufio.NewScanner(os.Stdin)
var out = bufio.NewWriter(os.Stdout)

func main() {
	a := nextInt()
	b := nextInt()
	defer out.Flush()
	a *= b
	if a%2 == 0 {
		out.WriteString("Even")
	} else {
		out.WriteString("Odd")
	}
	out.Flush()
	fmt.Println()

}
func next() string {
	sc.Scan()
	return sc.Text()
}
func nextInt() int {
	a, _ := strconv.Atoi(next())
	return a
}