[Verify] 495 -  Fibonacci Freeze
[Verify] 499 - What's The Frequency, Kenneth?
[Verify] 543 - Goldbach's Conjecture
[Verify]  572 - Oil Deposits
[Verify] 573 -  The Snail
[Verify] 583 - Prime Factors
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[Verify] 623 - 500!
[Verify] 673 - Parentheses Balance
[Verify] 674 - Coin Change
[Verify] 686 - Goldbach's Conjecture (II)
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