#include <stdio.h>
#define pi 3.1415926

int main () {
    float l,s,r,v;
    printf("input radius:");
    scanf("%f",&r);
    l = 2.0*pi*r;
    s = pi*r*r;
    v = 4.0/3.0*pi*r*r*r;
    printf("l=%10.4f,s=%10.4f,v=%10.4f\n",l,s,v);
    return 0;
}