#include <iostream>

using namespace std;

int main()
{
    int h, M;
    cin >> h >> M;
    for (int i = 1; i <= M; i ++ )
    {
        if (-6 * i * i * i * i + h * i * i * i + 2 * i * i + i <= 0)
        {
            cout << "The balloon first touches ground at hour:\n" << i;
            return 0;
        }
    }
    cout << "The balloon does not touch ground in the given time.";

    return 0;
}