If $$P = 2^2 + 6^2 + 10^2 + 14^2 + … 94^2$$ and $$Q = 1^2 + 5^2 + 9^2 + … 81^2$$, then what is the value of $$P - Q$$?

A

24645

B

26075

C

29317

D

31515