using System;

public class Program

{

    public static void Main()

    {

        int n, b =0, angka;

        Console.Write("Masukkan n:");

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

        for(angka = 1; angka <=5; angka+=1)

        {

            Console.Write(""+angka.ToString());

            if (angka ==5)

            break;

            Console.Write("+");

            b = b + angka;

    }

        b=b+angka;

        Console.Write("",angka);

        Console.Write("={0}",b);

    }

}

​

​