Python Problem

Let n be a five digit number, such as 12345. When we say this number out loud, we might say it as 'one two three four five'.

Write a function that converts a five digit number n to a string of its spoken equivalent.

For example:

If n = 34689, digit_to_string(n) should return 'three four six eight nine'.

If n = 10101, digit_to_string(n) should return 'one zero one zero one'.

If n = 35, digit_to_string(n) should return 'zero zero zero three five'.