Problem asks for palindromes starting at 1, but test cases start at 100.
Now it goes down to 10, but wouldn't single digits be considered palindromes as well?
Additional test cases were added and the description slightly enhanced.
Set some matrix elements to zero
02 - Vector Variables 2
07 - Common functions and indexing 6
Convert a vector into numbers
Find the square of the sum of the digits of a number
Find the dimensions of a matrix
Concatenate two strings
Find the area of the four walls
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