using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Vuvedete cqlo chislo N");

        int n = int.Parse(Console.ReadLine());

        int evenSum = 0;

        int oddSum = 0;

        for(int i = 1; i <= n; i++)

        {

            if(i % 2 == 0)

            {

            evenSum+=i;

            }

            else{oddSum+=i;}

        }

        Console.WriteLine("Sumata na chernite chisla ot 1 do " + n + " e " + evenSum);

        Console.WriteLine("Sumata na nechernite chisla ot 1 do " + n + " e " + oddSum);

    }

}