package main

import (
	"bufio"
	"fmt"
	"os"
	"strings"
)

func main() {
	in := bufio.NewReader(os.Stdin)
	var A, B string
	ans := "Odd"

	fmt.Fscan(in, &A, &B)
	listA := strings.Split(A, "")
	listB := strings.Split(B, "")
	if listA[len(listA)-1] == "0" || listB[len(listB)-1] == "0" {
		ans = "Even"
	}

	fmt.Println(ans)
}