import java.io.*;
import java.util.*;
import java.util.stream.*;

class Process {
    private int S;
    private int F;

    Process(int S, int F) {
        this.S = S;
        this.F = F;
    }

    int getResult() {
        
        return ((S / F) + 1);
    }
}

public class Main {
    public static void main(String[] args) throws IOException {
        var bufferedReader = new BufferedReader(new InputStreamReader(System.in));
        var printWriter    = new PrintWriter(new BufferedWriter(new OutputStreamWriter(System.out)));

        // 入力
        int[] input = Stream.of(bufferedReader.readLine().trim().split("[ ]+")).mapToInt(Integer::parseInt).toArray();

        // 処理および出力
        printWriter.println((new Process(input[0], input[1])).getResult());
        
        bufferedReader.close();
        printWriter.close();
    }
}