#include<stdio.h>
#define pI 3.141592653589793
struct cylinder{
    int radius;
    int height;
};
int main(){
    struct cylinder c1;
    int r=c1.radius;
    int h=c1.height;
    scanf("%d %d",&r,&h);
    
    if(r<=0 || h<=0){
        printf("Invalid input");
        return 0;
    }
    
    float surface =2*pI*r*h+(2*pI*r*r);
    float volume =pI
    
    printf("Surface Area")