using System;

using System.Collections.Generic;

using System.Text.RegularExpressions;

public class Program

{

    public static void Main()

    {

        var s = @"/+1-541-754-3010 156 Alphand_St. <J Steeve>

            133, Green, Rd. <E Kustur> NY-56423 ;+1-541-914-3010!

            <Anastasia> +48-421-674-8974 Via Quirinal Roma

            <Too many> some text +48-421-674-8974 ";

        Console.WriteLine(phone(s, "1-541-754-3010"));  // return J Steeve

        Console.WriteLine(phone(s, "1-541-914-3010"));  // return E Kustur

        Console.WriteLine(phone(s, "48-421-674-8974")); // return Error => Too many people: nb

        Console.WriteLine(phone(s, "48-421-674-1234")); // return Error => Not found: nb

    }

    static string phone(string phoneBook, string phoneNumber)

    {

        var entries = new Dictionary<string, PhoneBookEntry>();

        var lines = phoneBook.Split('\n');

        foreach(var line in lines)

        {

            if(PhoneBookEntry.TryParse(line, out PhoneBookEntry entry) && entry.Phone == phoneNumber)

            {

                if(entries.ContainsKey(entry.Phone))

                {

                    return "Error => Too many people: nb";

                }

                entries[entry.Phone] = entry;

            }

        }

        if(entries.TryGetValue(phoneNumber, out PhoneBookEntry result))

        {

            return result.ToString();

        }

        return "Error => Not found: nb";

    }

    private class PhoneBookEntry

    {   

        private static Regex _phoneRe = new Regex(@"\+(\d{1,2}-\d{3}-\d{3}-\d{4})");

        private static Regex _nameRe = new Regex(@"<([^>]+)>");

        private static Regex _specialCharsRe = new Regex(@"[/!;]");

        private PhoneBookEntry(string phone, string address, string name)

        {

            Phone = phone;

            Address = address;

            Name = name;

        }

        public string Phone {get;}

        public string Address {get;}

        public string Name {get;}

        public static bool TryParse(string rawData, out PhoneBookEntry result)

        {

            result = null;

            var phoneMatch = _phoneRe.Match(rawData);

            if(phoneMatch.Success)

            {

                var nameMatch = _nameRe.Match(rawData);

                if(nameMatch.Success)

                {

                    var phone = phoneMatch.Groups[1].Value;

                    var name = nameMatch.Groups[1].Value;

                    var address = _specialCharsRe.Replace(_nameRe.Replace(_phoneRe.Replace(rawData, ""), ""), "").Trim();

                    result = new PhoneBookEntry(phone, address, name);

                    return true;

                }

            }

            return false;

        }

        public override string ToString()

        {

            return $"Phone => {Phone}, Name => {Name}, Address => {Address}";

        }            

    }

}