using System;

public class Program

{

    public static void Main()

    {

        int [] arr = new int [8];

        for (int i=0; i<arr. Length; i++)

        {

            arr[i] = 3*i;

            Console.WriteLine(arr[i]);

        }

        int [] arr2 = new int [8];

        for (int i=0; i<arr2.Length;i++)

        {

            arr2[i] = 5*i;

            Console.WriteLine(arr2[i]);

        }

      }

    }