import java.util.*;

public class Main {
	public static void main(String args[]) {
		Scanner scan = new Scanner(System.in);

		int a = scan.hasNextInt() ? scan.nextInt() : -1;
		int b = scan.hasNextInt() ? scan.nextInt() : -1;
		if (a > 456 || a < 0 || b > 123 || b < 1) {
			System.out.println("入力エラー");
			return;
		}
		
		int step = 0;
		boolean flag = false;
		
	    if(a >= b){
	        step = (a / b) + 1;
	    }else{
	        flag = true;
	    }
		
		step = !flag? step:1;

		// 結果出力
		System.out.println(step);

	}
}