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package com.matsemann;

import java.io.FileInputStream;

import java.util.Scanner;

public class Ladder {

static Scanner sc;

public static void main(String[] args) throws Exception {

// System.setIn(new FileInputStream("inputs/ladder.txt"));

sc = new Scanner(System.in);

int h = sc.nextInt();

int v = sc.nextInt();

System.out.println((int) Math.ceil(h / Math.sin(Math.toRadians(v))));

}

}