#include <stdio.h>

//variables
double r1;
double r2;
double pi = 3.14;

//circle area variables
double r1Area = 0;
double r2Area = 0;
double areaSum = 0;

//circle circumference variables
double r1Circumference = 0;
double r2Circumference = 0;
double circumferenceSum = 0;

//function to calculate circle area and return sum of both
int sumOfArea(){
  r1Area = (pi * r1 * r1);
  r2Area = (pi * r2 * r2);
  areaSum = r1Area + r2Area;

  return areaSum;
}

//function to calculate circle circumference and return sum of both
int sumOfCircumference(){
   r1Circumference = (2 * (pi * r1));
   r2Circumference = (2 * (pi * r2));
   circumferenceSum = r1Circumference + r2Circumference;

   return circumferenceSum;
}

void calculate(){

  //take user input
  scanf("%lf %lf", &r1, &r2);

  //calculate area of both inputs
  sumOfArea();
  //calculate circumference of both inputs
  sumOfCircumference();

  printf("%.3lf\n", areaSum);
  printf("%.3lf\n", circumferenceSum);
}

int main(int argc, char const *argv[]) {
  /* code */
  calculate();
  return 0;
}