# Description of facts for size=4
- we need to get the first n letters of the alphabet so we need access to the full alphabet
- the center value for the first line is always the nth value and it's padded with "-"; what's the length of the padding? 
- the middle line always has the first letter of the alphabet as the middle value and the boundary is always the nth letter
   --> from L-R: the middle line starts at an and works its way back to a then from a it goes back to N.
   --> all the letters have a "-" instead of a space between them
   --> this means the length of all the lines is the length of the middle line; We must know the length of the middle line before we can draw the other lines. 
- split the rangoli into halves that is seperated by the middle line. 
- the top line of the upper starts with n in the middle. the next line has n - 1 in the middle and to the left of it is n and to the right of it is n. the next line has n-2 in the middle with the sequence going n-1 then n to the left, and n-1 then n to the right. The next line has n-3 in the middle with the sequence going n-2, n-1, then n to the left and n-2, n-1, then n to the right. Let's sketch this.