using System;

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using System;
using System.IO;
using System.Linq;
using System.Collections.Generic;

namespace CSharp_Shell
{

    public static class Program
    {
        public static void Main()
        {
           PrintPowersOfN(4, 3);
           PrintPowersOfN(5, 6);
           PrintPowersOfN(-2, 8);

           UserPrintPowersOfN();
        }

        public static void UserPrintPowersOfN(){
            int baseInt = 1;
            int maxPower = 1;
            bool validBase = false;
            bool validPower = false;

            while(!validBase){
                Console.Write("Enter base integer: ");
                validBase = int.TryParse(Console.ReadLine(), out baseInt);
            }

            while(!validPower){
                Console.Write("\nEnter the maximum exponent: ");
                validPower = int.TryParse(Console.ReadLine(), out maxPower);
            }

            Console.WriteLine();
            PrintPowersOfN(baseInt, maxPower);
        }

        public static void PrintPowersOfN(int baseValue, int maxPower){
            for (int i = 0; i <= maxPower; i++){
                Console.Write((int)Math.Pow(baseValue, i) + " ");
            }