Fórum Mimicking Array Names Being Defined at Runtime, C#

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//Rextester.Program.Main is the entry point for your code. Don't change it.
//Compiler version 4.0.30319.17929 for Microsoft (R) .NET Framework 4.5

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

// aljodav
// http://rextester.com/users/376

namespace Rextester
{
    using SJA=Rextester.StringJaggedArray;
    class StringJaggedArray{
        public string[][] X{get;set;}
        public int Length{get{return X==null?-1:X.Length;}}
        public static string[] operator +(StringJaggedArray x,int i){
            return x.X==null as string[][]?null as string[]:x.X[i%x.Length];
        }
    }
    
    class Program
    {
        public static void Main(string[] args)
        {
            string[] arr0={"A","B","C","D","E","F"},arr1={"1","2",},arr2={"@#","$%",},arr3={"abc","def",},arr4={"this","is","THE","END",};
            SJA arr= new SJA{X= new[]{arr0,arr1,arr2,arr3,arr4}};
            
            // Now, we can *mimic* names being defined at runtime,
            // writing just:   arr+i
            // where i belongs to [0..i-max)
            // 
            // The name of the array ( the main part) 
            // must match the name of the variable of type SJA
            // and must be numbered sequentially starting at 0
            
            for(int i=0;i<arr.Length;++i){
                Console.WriteLine(arr+i); // here, mimicking an array name
                Array.ForEach(arr+i,x=>Console.Write("\t{0}",x));
                Console.WriteLine("\n");
            }
        }
    }
}

Show compiler warnings [ + ] Show input
Compilation time: 0,16 sec, absolute running time: 0,11 sec, cpu time: 0,09 sec, average memory usage: 11 Mb, average nr of threads: 3