#include<iostream>
#include<cmath>
const double eps = 0.00000000001;
using namespace std;
double gg(double a, double n) {
    double r = 1000000000, l = 0, m;
    while (fabs(r - l) > eps) {
        m = (r + l) / 2;
        double b = m;
        for (int i = 1; i < n; ++i) {
            m = m * b;
        }
        if (m > a) {
            r = b;
        }
        else {
            l = b;
        }
    }
    return r;
}
int main() {
    double m, n;
    cin >> m >> n;
    cout.precision(20);
    cout << gg(m, n);
}