#include<stdio.h>
struct area
{
    int r;
    int h;
};
int main()
{
struct area wall;
    scanf("%d",&wall.r);
    scanf("%d",&wall.r);
    if(wall.r<0 ||wall.h<0)
    {
        printf("Invalid input");
    }
    else 
    {
        float a;
        float v;
    a=2*3.14*wall.r*(wall.r+wall.h);
    printf("%.2f",wall.r);
    v=3.14*wall.r*wall.r*wall.h;
        printf("%.2f",wall.h);
    }
}