#include <cmath>
#include <fstream>
#include <iostream>

using namespace std;

double degreeToRad(int degree)
{
    const double PI = 3.1415926;
    return ( (degree * PI) / 180.0); 
}

int main()
{
    ifstream in("DATA1.txt");
    ofstream out("OUT1.txt");
    
    for (int i(0); i < 5; i++)
    {
        int degree(0);
        int power(0);
        double rad(0);
        double distance(0);
        
        in>>degree;
        in>>power;
        
        rad = degreeToRad(degree);
        
        distance = ( (power * power) * sin(2*rad) ) / 9.81;
        distance = round(distance);
        
        out<<distance<<endl;
        
    }
    
    return 0;    
    
}