using System;

public class Program

{

    public static void Main()

    {

        int c = 0;

            double b = '*';

            int n = 1, n1 = 3, n2 = 5, n3 = 7;

        //Console.WriteLine(p);

        while (c == 15)

        {

            double  p = (b * 2) + n;

            Console.WriteLine(p);

            double p1 = (b * 2) + n1;

            Console.WriteLine(p1);

            double p2 = (b * 2) + n2;

            Console.WriteLine(p2);

            double p3 = (b * 2) + n3;

            Console.WriteLine(p3);

            c++;

        }

    }

}

​