If the numbers 1 to 3 are written out in words: one, two, three, then there are 3 + 3 + 5 = 11 letters used in total.

If all the numbers from 1 to 100 (one hundred) inclusive were written out in words, how many letters would be used? Ignore spaces and hyphens in coming up with your count! Please write ONLY the exact number of letters in your answer (i.e. if the count is 20, please just write 20 in the solution field).