#include <iostream>
#include <cmath>
using namespace std;

int main()
{
    double x,y,h,S,P,a;
    cout<<"Vuvedi t.A:";
    cin>>x>>y;
    h=3*sqrt((x*x)+(y*y))/2;
    a=h/sqrt(3);
    P=a*3*2;
    S=a*2*h/2;
    cout<<"P="<<P<<endl<<"S="<<S;
}