Hole Number Sequence

What do the digits 0, 4, 6, 8, and 9 have in common? Well, they are whole numbers... and they are also hole numbers (not actually a thing until now). Hole numbers are numbers with holes in their shapes (8 is special in that it contains two holes).

14 is a hole number with one hole. 88 is a hole number with four holes.

Your task is to create a function with argument N that returns the sum of the holes for the integers n in the range of range 0 < n <= N.

To illustrate, sum_of_holes(14) returns 7, because there are 7 holes in 4, 6, 8, 9, 10 and 14.

Examples

sum_of_holes(4) ➞ 1

sum_of_holes(6) ➞ 2

sum_of_holes(8) ➞ 4

sum_of_holes(6259) ➞ 12345

Notes

• All test cases are positive real integers.
• Don't forget that 8 has two holes.