I've learned from this and similar solutions of the use of shiftdim with a negative number. This may well be handy for future programming. Thanks for showing us this feature.
Getting the indices from a vector
Doubling elements in a vector
Count up then down
Square Digits Number Chain Terminal Value (Inspired by Project Euler Problem 92)
Check to see if a Sudoku Puzzle is Solved
Return the first and last characters of a character array
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