using System;

using System.Threading;

using System.Collections.Generic; 

public class Program

{

    public static List<string> SplitStringOptimized(string input, int maxLength)

    {

        List<string> result = new List<string>();

        string[] words = input.Split(' ');

​

        int index = 0;

        while (index < words.Length)

        {

            string currentLine = words[index];

            index++;

​

            while (index < words.Length && (currentLine + " " + words[index]).Length <= maxLength)

            {

                currentLine += " " + words[index];

                index++;

            }

​

            result.Add(currentLine);

        }

        Thread.Sleep(3000);

​

        return result;

    }

​

    public static void Main(string[] args)

    {

        string input = "priya patel & khushbu Faldu & Nilam Gadhiya & jeremy Leo & Jemes <Trustname>";

        int maxLength = 20;

        string[] words = input.Split('<');

        List<string> substrings = SplitStringOptimized(words[0], maxLength);

        substrings.Add("<{words[1]}");

        foreach (string substring in substrings)

        {

            Console.WriteLine(substring);

        }

    }

}

​