K-Calculate the ball volume

Time limit:1000MS Memory Limit:32768KB 64bit IO Format:%i64d &A mp %i64u

Description

Calculates the ball's volume based on the input radius value.

Input

There are several groups of input data, one for each group, and a real number for each row, which indicates the radius of the ball.

Output

The output corresponds to the volume of the ball, for each set of input data, the output line, the result of the calculation is reserved three decimal places.

Sample Input

11.5

Sample Output

4.18914.137

Hint

It's easy to find the volume

 #include <stdio.h> #include  <math.h>  #define  PI 3.1415927int   main () { double   a,v;  while  (scanf ( " %LF  , &a)!=eof) {V  =pi*a*a*        A*4 /  %.3lf\n   " ,v);  return  0  ;}

K-Calculate the ball volume