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(1 ten), (2 5's), (1 5 and 5 1's), and (10 1's)
(1 100), (2 50's), (5 20's), (10 10's), (20 5'2), and (100 1's)
[50, 50] -> [20,20,10, 50] -> [10,10, 20, 10, 50] (and so on)