using System;

public class Program
{
  static void Main()
  {
    string SF = Console.ReadLine();
    string S_ = "";
    string F_ = "";
    int S = 0;
    int F = 0;
    int result = 0;
    int i = 0;
    
    while(SF.Substring(i, 1) != " ")
    {
      S_ = S_ + SF.Substring(i, 1);
      i++;
    }
    F_ = SF.Substring(i + 1);

    S = Convert.ToInt32(S_);
    F = Convert.ToInt32(F_);
    result = S / F;
    result++;
    Console.WriteLine(result.ToString());
  }
}