#include <bits/stdc++.h>

using namespace std;
using ll = long long;

int main()
{
    long double h, a;
    cin >> h >> a;
    a = a * 3.14159 / 180;
    long double sn = sin(a);

    long double sol = h / sn;

    cout << ceil(sol) << endl;
    return 0;
}