using System;
class Program
    {
        static void Main(string[] args)
        {
            long sum = 0;
            string N = Console.ReadLine();
            string[] t = N.Split(' ');
            long n = long.Parse(t[0]);
            long m = long.Parse(t[1]);
            sum = n / m + 1;
            Console.WriteLine(sum);
        }
    }