Try out this test problem first.
Given the variable x as your input, square it by two and put the result in y.
Input x = 2
Output y is 4
Input x = 10
Output y is 100
Return a list sorted by number of occurrences
Find common elements in matrix rows
Back to basics 14 - Keywords
Getting the row and column location from a matrix
The Answer to Life, the Universe, and Everything
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