The value of $$\frac{1}{4-\sqrt{15}}-\frac{1}{\sqrt{15}-\sqrt{14}}+\frac{1}{\sqrt{14}-\sqrt{13}}-\frac{1}{\sqrt{13}-\sqrt{12}}+\frac{1}{\sqrt{12}-\sqrt{11}}-\frac{1}{\sqrt{11}-\sqrt{10}}+\frac{1}{\sqrt{10}-3}-\frac{1}{3-\sqrt{3}}$$

A

$$2-2\sqrt{2}$$

B

$$4+2\sqrt{2}$$

C

$$4-2\sqrt{2}$$

D

$$2+2\sqrt{2}$$