#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# https://atcoder.jp/contests/abc086/tasks/abc086_a

i = list(map(int, input().split()))
a=i[0]
b=i[1]

if a % 2 == 0 or b % 2 == 0:
    print ("even")
    exit (0)

print ("odd")