Find an approximating polynomial of known degree for a given data.

Example:
For input data:

x = {0,  1,  2,  3,  4,  5,  6,   7,   8,   9,   10};
y = {1,  6,  17, 34, 57, 86, 121, 162, 209, 262, 321};

The approximating polynomial is:

3 x2 + 2 x + 1

Here, the polynomial's coefficients are (3, 2, 1).

This task is intended as a subtask for Measure relative performance of sorting algorithms implementations.

ПC	С/П	ПD	ИП9	+	П9	ИПC	ИП5	+	П5
ИПC	x^2	П2	ИП6	+	П6	ИП2	ИПC	*	ИП7
+	П7	ИП2	x^2	ИП8	+	П8	ИПC	ИПD	*
ИПA	+	ПA	ИП2	ИПD	*	ИПB	+	ПB	ИПD
КИП4	С/П	БП	00