using System;
using System.Diagnostics;

namespace CodeIq
{
	internal class Program
	{
		private static void Main()
		{
			// パラメータ取得
			var line = Console.ReadLine();
			if( string.IsNullOrEmpty( line ) )
				return;
			var s = int.Parse( line.Split( ' ' )[0] );
			var f = int.Parse( line.Split( ' ' )[1] );

			Debug.Print( ( ( s / f )  + 1 ).ToString() );
			Console.WriteLine( ( ( s / f ) + 1 ).ToString() );
		}
	}
}