import java.io.*;
public class No_388{
	public static void main(String[] args){
		BufferedReader br = null;
		try{
			br = new BufferedReader(new InputStreamReader(System.in));
			String s = br.readLine();
			String[] sa = s.split(" ");
			int[] saNum = new int[sa.length];
			for(int i = 0; i < saNum.length; i++){
				saNum[i] = Integer.parseInt(sa[i]);
			}
			System.out.println(saNum[0] / saNum[1] + 1);
		}catch(IOException e){
		}finally{
			try{
				if(br != null)br.close();
			}catch(IOException e){}
		}
	}
}