package main

import "fmt"

func min(a ...int) int {
	m := a[0]
	for i, v := range a {
		if i == 0 {
			continue
		}
		if m > v {
			m = v
		}
	}
	return m
}

func gcd(A int, B int) int {

	if B == 0 {
		return A
	}
	return gcd(B, A%B)
}

func main() {
	var A, B int
	fmt.Scan(&A, &B)

	c := gcd(A, B)
	var count int = 0
	for i := 1; i <= c; i++ {
		if A%i == 0 && B%i == 0 {
			count++
		}
	}
	if count%2 == 0 {
		fmt.Println("Even")
	} else {
		fmt.Println("Odd")
	}
}