USNG MATLAB

The following questions are concerned with the calculation of the sum of the squares of these decimal digits.

For example, take the number 24. The sum of the squares of its decimal digits is:

(I am going to name this function ssdd)

ssdd(20) = 2*2 + 4*4 = 20

Rather large numbers can have small results:

ssdd(10000000) = 1

Or smaller numbers can have larger results:

ssdd(99) = 9*9 + 9*9 = 81 + 81 = 162

1)What is ssdd of 1:1000 (= [1 2 3 ... 1000])?