The 19th century German mathematician Hermann Minkowski investigated a non-Euclidean geometry, called the taxicab geometry. In taxicab geometry the distance between two points
All other definitions are the same as in Euclidean geometry, including that of a circle:
A circle is the set of all points in a plane at a fixed distance (the radius) from a fixed point (the centre of the circle).
We are interested in the difference of the areas of two circles with radius
Input Specification
The first and only line of input will contain the radius
Output Specification
On the first line you should output the area of a circle with radius
On the second line you should output the area of a circle with radius
Note: Outputs within
Sample Input 1
1
Sample Output 1
3.141593
2.000000
Sample Input 2
21
Sample Output 2
1385.442360
882.000000
Sample Input 3
42
Sample Output 3
5541.769441
3528.000000
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