using System;
using System.Text;
using System.Text.RegularExpressions;
public class Program
{
public static void Main()
string index = default(string);
index = "МДК.03.01";
if (index.Contains("МДК."))
int d = int.Parse(Regex.Match(index,"\\d\\d").Value);
Console.WriteLine("ПМ." + d + " " + index);
}