Hi there! If you’re new to Julia, make sure you read: Please read: make it easier to help you.
If this question is a homework problem, you should be mindful of your schools honor code when asking “will you please give me a similar but shorter and smaller code?”
In general, you are more likely to receive help if you simplify your problem, outline what you have attempted so far, and provide code for where you got stuck, rather than asking for a complete solution approach.