C :

#include<stdio.h>
int main()
{
	int n;
	scanf("%d",&n);
	if(n%2==0)
	{
	printf("even\n");
	}
	else
	{
	printf("odd\n");
	}
}

C++ :

#include<stdio.h>
int main()
{
    int x;
    //freopen("1024A3.in","r",stdin);
    //freopen("1024A3.out","w",stdout);
    scanf("%d",&x);
    if(x%2==1)
    {
        printf("odd\n");
    }
    if(x%2==0)
    {
        printf("even\n");
    }
}

Java :

import java.util.Scanner;

public class Main
{
	public static void main(String[] args)
	{
		Scanner sc=new Scanner(System.in);
		int a=sc.nextInt();
		if(a%2!=0) 
		{
			System.out.println("odd");
		}
		else
		System.out.println("even");

	}
}

Python :

# coding=utf-8
#python2
a = int(input())
if a%2==0:
    print("even")
elif a%2==1:
    print("odd")

C# :

using System;
using System.Collections.Generic;
using System.Diagnostics.SymbolStore;
using System.Linq;
using System.Security.Cryptography;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp2
{
    internal class Program
    {
        static void Main()
        {
            //int[] days = { 31,28,31,30,31,30,31,31,30,31,30,31};
            /*int n = Convert.ToInt32 (Console.ReadLine());
            string[] a1 = Console.ReadLine().Split();
            double r = Convert.ToDouble(a1[0]);
            double b = Convert.ToDouble(a1[1]);
            double c = Convert.ToDouble(a1[2]);
            float pi = 3.1415926f;
            string S = ((r + b+c) / n).ToString("0.00");
            */
            int a=Convert.ToInt16( Console.ReadLine());
            string b = "even";
            if (a%2==1) {
                b = "odd";
            };
            Console.WriteLine(b);

            Console.ReadKey();

        }
    }
}