#include <stdio.h>
#include <math.h>
#define PI 

int main() {
    double r, h;
    
    scanf("%lf", &h);
    
    if (r < 0 || h < 0) {
        printf("Invalid input\n");
    } else {
        
        double surfaceArea = (2 * PI *r *h) + (PI * r * r);
        printf("Surface Area: %.2lf\n", surfaceArea);
    }
    
    return 0;
}