import java.io.*;

import java.util.*;

public class DWITE1 {
	
	public static void main (String [] args) throws IOException {
	
		BufferedReader inBuff = new BufferedReader(new FileReader("DATA1.txt"));
	
		PrintWriter outPrint = new PrintWriter(new FileWriter("OUT1.txt"));
		
		for (int i = 0; i < 5; i ++){
		
		int angle = 0, power = 0, trun=0;
			
		double angrad = 0, answer=0;
		
		String value = inBuff.readLine();
		
		StringTokenizer st = new StringTokenizer (value, " ");
		
		while (st.hasMoreElements()){
			
			angle = Integer.parseInt(st.nextToken());
			
			power = Integer.parseInt(st.nextToken());
		}
		
		angrad = angle * (Math.PI / 180);
		
		answer = power * power * Math.sin(angrad*2) / 9.81;
		
		trun = (int) answer;
		
		if ((answer - trun) > 0.5){
			
			answer = answer + 1;
		}
		
		else{
			
			answer = answer;
		}
				
		outPrint.println( (int) answer);
		
		}
		
		outPrint.close();
	}
}