#include <stdio.h>
#define pi 3.1416 
int main(void)
{ int r, h;
  float v;
  printf("Volume of Cylinder \n");
  printf("Radius = "); scanf ("%d",&r);
  printf("Height = "); scanf ("%d",&h);
    v = pi*r*r*h;
  printf("Volume = %3.2f \n", v);
}