#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i = 0; i < (n);i++)
#define sz(x) int(x.size())
typedef long long ll;
typedef pair<int,int> P;
constexpr double pi = acos(-1);
int main(){
  double r, R;
  cin >> r >> R;

  double left = 180.0, right = 360.0;

  auto ok = [&](double m) {
    double x = R*cos(m/180.0*pi);
    double y = R*sin(m/180.0*pi);
    return sqrt((x - R)*(x - R) + y*y) > (2 * r);
  };
  for (int i = 0; i < 10000; i++) {
    double m = (right + left) / 2.0;
    if (ok(m))  left = m;
    else right = m;
  }
  double S = pi*((R+r)*(R+r) - (R-r)*(R-r))*left/360.0 + r*r*pi;
  double t = pi*left/180.0;
  printf("%.12f\n",t);
  printf("%.12f\n",S);
  return 0;
}