package main

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

func main() {
	reader := bufio.NewReader(os.Stdin)

	fmt.Print("Enter a whole number: ")
	text, _ := reader.ReadString('\n')
	n, _ := strconv.Atoi(strings.TrimSpace(text))

	if n%2 == 0 {
		fmt.Println("even")
	} else {
		fmt.Println("odd")
	}
}