using System;

using System.Collections.Generic;

using System.Linq;

public class Program

{

    public static void Main()

    {

        //Console.WriteLine("Hello World");

        string FlowNumber = "BL-2000003";

        List<string> listUnComplete = new List<string>() { "BL-", "EB-", "ST-" }; //表單無需處理完成

        if(listUnComplete.Any(FlowNumber.Contains))

            Console.WriteLine("Y");

        else

            Console.WriteLine("N");

        List<string> listPetitionNo = new List<string>() { "BA-2000001", "IA-2000002", "BL-2000003", "EB-2000003" };

        List<string> copyList = listPetitionNo.FindAll(item => item.Contains("BA-") || item.Contains("BL-") || item.Contains("EB-") || item.Contains("ST-"));

        //Console.WriteLine(copyList.Count);

        List<string> listAllowCopy = new List<string>() { "BA-", "BL-", "EB-", "ST-" }; //允許抓附件檔案的表單

        copyList = listPetitionNo.FindAll(item => listAllowCopy.Any(item.Contains));

        //Console.WriteLine(copyList.Count);

        foreach(string c in  copyList)

            Console.WriteLine(c);

    }

}