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//Title of this code
//Rextester.Program.Main is the entry point for your code. Don't change it.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;

namespace Rextester
{
    public class Program
    {
        public static void Main(string[] args)
        {
            //Regex.Matches((args.Length >= 1 ? args[0] : (File.Exists("input.txt") ? File.ReadAllText("input.txt") : string.Empty)), @"\d{0,1}[a-z]{1}")
            Regex.Matches("j3f3e3e3d3d3c3cee3c3c3d3d3e3e3f3fjij3f3f3e3e3d3d3c3cee3c3c3d3d3e3e3fj", @"\d{0,1}[a-z]{1}")
                 .Cast<Match>()
                 .Select(x => "...***--++".Substring(10-(x.ToString().Last() - 96)) + (x.Length==2 ? string.Empty.PadLeft(x.Value.First()-48) : string.Empty))
                 .Select(x => x.PadLeft(10))
                 .Aggregate(string.Empty, ((c, x) => c+x))
                 .Select((x,i)=> new {Column = Math.Ceiling(i/10.0), Row=i % 10, Value = x})
                 .GroupBy(x=>x.Row)
                 .Select(x=>x.OrderBy(y=>y.Column))
                 .ToList()
                 .ForEach((x) =>
                     {
                         x.Select(y=>y.Value).ToList().ForEach(Console.Write);
                         Console.Write("\r\n");
                     });
        }
    }
}

Show compiler warnings [ + ] Show input
Compilation time: 0.11 sec, absolute running time: 0.16 sec, cpu time: 0.14 sec, average memory usage: 18 Mb, average nr of threads: 5