#include <iostream>
#include <cstdio>
#include <cmath>
using namespace std;
const double PI = acos(-1.0);
int main(){
double r,h;
int counter = 1;
while(scanf("%lf %lf",&r,&h)!=EOF,r||h){
printf("Case %d:%.2lf\n",counter++,2*PI*r*h+2*PI*r*r);
}
}
relax 圆柱体的表面积
最新推荐文章于 2025-01-13 00:56:13 发布