#include<iostream>
#include<cmath>
#include<conio.h>
using namespace std;
int main()
{
    double Ek;
    double v1, v2;
    const double c = 3 * pow(10, 8);
    double m = 9.11*pow(10, -31);
    cin >> Ek;
    v1 = sqrt(2 * Ek / m);
    v2 = c*sqrt(Ek*Ek - 2 * Ek*m*c*c) / (Ek + m*c*c);
    cout << v1 << endl << v2 << endl;
}