using System;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        var str = new List<string> 

        {

            "String 1",

            "String 2",

            "error",

            "String 3"

        };

        foreach (var s in str) 

        {

            Console.WriteLine($"Preparing string: {s}");

            if (s == "error")

            {

                Console.WriteLine("Error detected. Skipping...\r\n");

                continue;

            }

            Console.WriteLine($"Success! String: {s}\r\n");

        }

    }

}