//Jamie Silva
//Lakota East High School
//SR-3
//Contest #2
//Language = C#

using System;
using System.IO;

namespace ACSLContestTwo
{
    class Program
    {
        static void Main(string[] args)
        {
            StreamReader input;
            bool finished = false;
            string fileName = "c:\\acsldata.txt";

            do
            {
                try
                {
                    input = new StreamReader(fileName);
                }
                catch (FileNotFoundException)
                {
                    Console.WriteLine("\n\nFile not found!\n\nTry again.");
                    Console.Write("Enter the complete data file name: ");
                    fileName = Console.ReadLine();
                    continue;
                }


                while (!input.EndOfStream)
                {
                    try
                    {
                        string inLine = input.ReadLine();
                        string[] data = inLine.Split(',');

                        int inputNum = Convert.ToInt32(data[0]);
                        int strLength = data[1].Length;
                        string result = "";
                        int starCount = 0;

                        for (int j = 0; j < strLength - 1; j++)
                        {
                            string[] chars = new string[inputNum];
                            bool hasZero = false;
                            bool hasOne = false;

                            for (int k = 0; k < inputNum; k++)
                            {

                                switch (data[k + 1].Substring(j + 1, 1))
                                {
                                    case "0": hasZero = true; break;
                                    case "1": hasOne = true; break;
                                }
                            }

                            if (hasOne)
                            {
                                if (hasZero)
                                {
                                    starCount++;
                                    result += "*";
                                }
                                else
                                {
                                    result += "1";
                                }
                            }
                            else
                            {
                                result += "0";
                            }
                        }

                        int starMax = 0;
                        if (inputNum == 8)
                        {
                            starMax = 3;
                        }
                        else if (inputNum >= 4)
                        {
                            starMax = 2;
                        }
                        else if (inputNum >= 2)
                        {
                            starMax = 1;
                        }
                        else
                        {
                            starMax = 0;
                        }

                        if (starCount <= starMax)
                        {
                            Console.WriteLine(result + "\n");
                        }
                        else
                        {
                            Console.WriteLine("NONE\n");
                        }

                    }
                    catch (Exception)
                    {
                        Console.WriteLine("Something went wrong. Moving to the next entry.");
                        continue;
                    }
                }

                finished = true;
            } while (!finished);
        }
    }
}