import java.util.Scanner;

public class Main{
	public static void main(String[] args) {
		//System.out.println("現在いるの段数");
		Scanner scanner = new Scanner(System.in);
		int S = scanner.nextInt();
		if(!(0 <= S && S <= 456)) {System.exit(0);}
		//System.out.println("段数");
		int F = scanner.nextInt();
		if(!(1 <= F && F <= 123)) {System.exit(0);}
		scanner.close();
		int n = 0;
		n = S/F+1;
		System.out.println(n);
	}
}