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Problems

Function - 1

Function - 1

Time limit 1 second
Memory limit 128 MiB

Implement the function f(x) = x^3 + 2 \cdot x^2 - 3.

Input data

Each line contains one real number x.

Output data

For each value of x, print the value of the function f(x) on a separate line with four decimal places.

Examples

Input example #1
2.234
1
56
23.2
Output example #1
18.1309
0.0000
181885.0000
13560.6480
Author Mykhailo Medvediev
Source Programming language C