If March = 43 and May = 39, what does July equals to?

Question

If
January 71313,
February 82382,
March 53113,
April 54203,
May 35113,
June 46203,
July 47113 and
August 68313
then
December =?

Answer 1

MARCH = 13+1+18+3+8 = 43
MAY = 13+1+25 = 39
JULY = 10+21+12+25 = 68

As A = 1, B = 2, C = 3, ......... Z = 26.

Answer 2

March=43
April=41
May=39
June=37
So..july=35