using System;

using System.Collections;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.IO;

using System.Reflection;

​

using System.Text.Json;

using System.Text.Json.Serialization;

​

​

​

    public class Program

    {

        public static void Main()

        {

            string number = "123 USA, America";

            string[] delimiters =  {

                                @" ",

                                @","

             };

            var chunks = number.Split(delimiters, StringSplitOptions.RemoveEmptyEntries);

            for( int i=0;i< chunks.Count();i++)

            {

              Console.WriteLine(chunks[i]);         

            }       

        }

    }

​