import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class No00000388_Main {
	static BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
	public static void main(String[] args) throws IOException {
		String[] arr = br.readLine().split(" ");
		System.out.println((Integer.parseInt(arr[0]) / Integer.parseInt(arr[1])) + 1);
	}
}