Description
Giving basic information of some shapes, you need to draw them on the Cartesian coordinate system and calculate the total area.
PI has already defined in function.h.
Input
There are only 2 shapes in this problem :
1. R (Rectangle), followed by 4 points. Each point represent 1 vertex of the rectangle, with the format (x, y).
2. C (Circle), followed by 1 point represent the centre of the circle, and a number of its radius.
If the radius is negative, set it to 0.
e.g., the result of sample input would be like :
Output
Output the total area of all the shapes.