using System;

public class Program

{

    public static void Main()

    {

        int[] a = new int[10];

        int jump = 1;

        int x = 7;

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

        {

            a[i] = x;

            x+=jump;

            jump++;

            Console.WriteLine(a[i]);

        }

    }

}