// No.2415 偶数判定！Nafmoくん
package main

import (
	"fmt"
	"strings"
)

func main() {
	var a, b string
	fmt.Scan(&a, &b)
	if strings.HasSuffix(a, "1") && strings.HasSuffix(b, "1") {
		fmt.Println("Odd")
	} else {
		fmt.Println("Even")
	}
}