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cesare/gist:4203716

Created December 4, 2012 13:07
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gistfile1.rb
r = Random.new(19930224); (1..22).sort_by { r.rand }
# => [4, 10, 13, 18, 7, 16, 20, 15, 22, 2, 19, 5, 17, 14, 8, 6, 9, 1, 11, 3, 21, 12]
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