using System;
public class Program
{
public static void Main()
//Diego Lozano
int num;
int res;
Console.WriteLine("Welcome! If you want to see the odd numbers from 1-100 press: 1, for the even numbers press: 2");
num = int.Parse(Console.ReadLine());
for (int i = 1; i <= 49; i++)
num++;
res = num + i;
Console.WriteLine(res);
}