Swap the first and last columns
Finding Perfect Squares
Find the sum of the elements in the "second" diagonal
Try 1.5.4: Celsius to Fahrenheit
Sum the numbers on the main diagonal
Implement Solitaire cipher for N long deck.
Poker Series 07: IsTwoPair
Project Euler: Problem 8, Find largest product in a large string of numbers
Decode a simplified barcode
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