day9!?
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GPG Key ID:
4E0AF802FFF7960C
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input = (ARGV.empty? ? DATA : ARGF).read.split.map(&:to_i).freeze
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# Pass me a block telling me what to do with [child_values, metadata_values]
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def val(a, &b)
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n_children = a.shift
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n_metadata = a.shift
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yield(n_children.times.map { val(a, &b) }, a.shift(n_metadata))
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end
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puts val(input.dup) { |child, meta| child.sum + meta.sum }
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puts val(input.dup) { |child, meta|
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# metadata indices are 1-indexed, so just prepend a zero.
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child.unshift(0)
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child.size == 1 ? meta.sum : meta.sum { |x| child[x] || 0 }
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}
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__END__
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7 11 6 3 5 5 3 6 1 7 0 10 1 7 4 5 1 3 1 5 9 1 1 3 2 1 3 1 2 1 6 0 9 2 5 9 4 1 1 2 7 2 3 1 3 3 1 3 1 9 0 9 1 7 9 9 1 7 9 5 8 2 1 3 3 3 2 1 2 2 5 2 1 3 2 1 3 6 1 6 0 7 1 2 6 4 4 3 4 1 2 2 1 2 3 1 9 0 11 9 2 3 2 6 7 1 4 5 3 4 1 1 3 1 3 3 2 3 1 1 8 0 7 1 3 6 8 8 3 8 1 3 1 1 2 2 3 3 3 1 5 2 2 1 3 6 1 8 0 10 7 3 1 4 9 5 4 4 8 6 2 1 1 1 1 3 3 3 1 9 0 10 7 9 1 2 2 1 3 9 2 3 2 1 3 2 2 1 1 2 1 1 9 0 8 1 6 1 8 5 1 1 1 1 1 3 1 3 3 3 1 1 2 4 4 4 2 1 3 5 1 6 0 6 1 8 5 2 1 9 3 3 1 1 1 3 1 7 0 10 2 6 9 7 8 1 1 3 2 1 3 1 2 2 1 2 3 1 8 0 6 1 9 6 1 9 5 1 2 1 1 3 3 1 2 4 2 2 2 5 3 7 1 9 0 8 5 9 3 1 4 3 1 5 1 2 1 1 3 1 2 1 2 1 5 0 8 5 1 3 6 3 1 3 9 3 1 3 3 2 1 7 0 11 7 8 5 4 9 6 2 8 7 1 9 3 1 2 2 1 3 1 5 5 5 5 5 1 4 1 3 5 5 2 5 3 3 7 1 7 0 11 3 1 4 9 2 7 7 9 5 5 9 2 3 1 2 3 3 3 1 9 0 10 9 5 1 6 9 4 1 6 1 1 3 3 2 3 3 1 3 3 3 1 6 0 8 7 4 4 1 1 1 8 3 3 1 1 1 2 2 5 4 4 3 2 3 3 3 7 1 7 0 9 1 9 3 5 5 4 3 3 1 1 3 1 3 1 2 2 1 6 0 6 1 8 1 4 1 5 3 1 2 1 1 1 1 5 0 8 2 4 3 4 4 4 3 1 1 1 1 3 3 5 5 3 5 2 5 2 3 6 1 8 0 7 7 9 1 1 8 1 2 3 2 2 1 2 1 1 1 1 7 0 7 7 6 3 5 1 8 8 1 3 3 1 2 3 3 1 6 0 10 9 4 6 1 9 4 2 1 1 4 1 1 3 1 2 2 4 4 1 3 2 2 3 4 1 8 0 10 9 2 2 9 5 5 6 3 3 1 1 3 2 2 3 1 1 3 1 6 0 10 1 5 1 6 2 1 8 8 3 8 1 1 1 1 2 1 1 9 0 7 8 4 2 5 1 1 7 1 2 2 2 1 1 3 3 1 1 1 4 2 3 6 1 7 0 9 9 2 9 2 9 5 7 1 6 2 1 1 2 3 3 1 1 9 0 10 1 5 8 3 4 4 1 2 3 1 2 2 3 1 3 2 2 1 1 1 8 0 9 1 8 1 6 1 7 3 1 2 2 1 1 2 1 1 2 2 4 4 3 5 1 3 4 2 7 4 3 3 4 1 5 0 8 9 1 5 9 2 1 3 7 1 3 2 1 1 1 6 0 11 2 9 1 4 9 1 1 1 6 7 7 1 1 1 3 1 1 1 8 0 9 9 9 7 9 9 8 6 6 1 1 3 1 2 1 2 1 1 3 5 2 3 3 4 1 6 0 11 6 2 8 1 7 5 7 2 6 4 1 2 2 1 1 2 3 1 7 0 6 7 2 5 1 5 6 2 1 3 3 2 1 3 1 6 0 6 1 8 3 6 9 5 3 2 1 2 2 1 3 1 4 2 3 5 1 5 0 7 8 1 3 6 1 9 3 2 3 2 1 2 1 6 0 8 8 2 1 7 4 2 5 9 1 3 3 1 1 2 1 5 0 9 1 8 2 8 1 4 8 9 3 1 2 1 3 3 5 4 2 4 3 3 5 1 9 0 10 1 5 7 1 1 3 6 1 5 6 1 3 1 1 2 1 2 1 2 1 7 0 10 1 4 3 1 9 1 7 9 1 1 1 1 3 1 3 1 3 1 9 0 8 8 4 8 3 1 8 3 5 2 1 3 1 1 1 1 1 3 5 5 4 2 3 4 6 4 5 4 3 7 1 9 0 10 7 1 1 6 3 7 8 1 6 6 3 1 1 1 3 1 1 2 2 1 6 0 9 2 2 5 2 1 4 9 9 1 1 3 2 1 1 1 1 7 0 7 6 4 8 5 7 1 1 3 3 1 1 2 1 1 5 2 3 1 2 5 1 3 4 1 9 0 8 2 9 3 1 4 8 8 9 3 2 3 1 1 1 1 3 2 1 5 0 7 8 2 4 2 1 1 3 3 1 2 3 1 1 7 0 11 7 8 7 5 5 4 6 7 3 1 1 3 1 2 1 3 1 3 3 1 4 3 3 5 1 8 0 9 1 1 2 9 8 1 6 9 5 2 2 3 1 3 2 1 1 1 9 0 6 8 7 2 7 1 3 2 1 1 1 2 1 3 1 3 1 9 0 6 5 5 1 8 6 4 1 1 1 2 1 1 1 1 1 2 4 1 4 5 3 4 1 8 0 6 5 4 1 3 1 4 3 2 2 1 3 2 3 1 1 9 0 9 2 1 4 1 3 6 4 8 8 2 3 1 1 1 2 3 2 1 1 9 0 8 2 8 5 1 9 8 2 5 1 2 1 1 3 3 3 1 3 3 5 1 2 3 6 1 8 0 11 7 2 9 2 8 4 9 1 3 1 2 1 2 1 2 3 1 1 1 1 5 0 11 6 8 1 4 7 4 1 1 8 5 7 2 1 1 1 2 1 9 0 8 1 6 1 5 1 8 5 5 3 1 2 3 2 3 1 1 1 1 4 3 5 1 1 6 5 1 1 5 3 3 5 1 8 0 8 1 2 5 4 2 7 9 6 1 1 2 1 2 2 3 2 1 8 0 9 4 5 8 1 7 7 1 1 6 3 3 2 3 2 2 1 3 1 5 0 8 6 7 5 3 1 4 5 2 1 1 2 1 2 5 5 1 5 3 3 5 1 9 0 7 6 9 8 1 1 7 6 3 1 2 1 1 2 2 2 3 1 7 0 6 2 1 2 5 4 8 2 3 3 1 1 3 1 1 5 0 9 1 8 4 7 9 4 2 7 8 1 3 2 1 2 2 2 4 3 3 3 5 1 7 0 11 3 2 9 5 7 1 4 7 7 1 9 1 3 3 1 2 1 1 1 7 0 10 2 1 9 8 9 1 6 4 1 3 2 3 3 1 1 3 1 1 9 0 10 8 9 5 9 2 1 5 1 9 6 1 3 2 1 1 2 1 1 2 1 3 4 1 1 3 7 1 9 0 7 2 8 1 6 1 6 6 2 3 1 1 3 3 2 1 2 1 9 0 10 1 6 5 4 1 9 4 7 4 9 1 3 1 3 1 2 1 1 3 1 8 0 9 4 7 1 2 2 7 2 6 3 1 3 2 3 2 2 1 2 4 2 3 1 1 5 1 3 6 1 6 0 9 3 1 4 6 3 5 3 6 5 2 1 1 2 1 1 1 5 0 6 5 1 2 3 3 3 1 2 1 3 1 1 7 0 7 3 7 1 7 4 3 7 1 3 1 3 3 1 1 5 4 2 4 2 4 4 4 4 4 4 3 4 1 7 0 10 1 3 7 5 1 1 7 8 6 8 3 3 1 2 1 1 3 1 6 0 8 9 1 5 4 4 3 4 7 1 1 2 1 1 3 1 7 0 10 7 1 1 1 1 3 2 3 8 7 1 2 3 1 1 3 3 3 4 1 2 3 7 1 8 0 8 3 4 2 6 1 1 6 9 3 1 2 2 3 1 2 1 1 6 0 10 4 8 9 6 9 2 2 9 1 4 1 2 1 2 2 2 1 8 0 10 6 4 4 9 4 1 5 8 4 2 2 2 1 2 2 1 1 1 1 4 2 1 3 5 5 3 7 1 8 0 10 5 2 6 8 1 2 7 6 2 1 2 2 2 1 3 1 2 3 1 6 0 9 4 1 6 1 1 8 1 4 6 1 1 2 1 2 1 1 7 0 7 1 9 4 1 7 5 1 1 3 2 2 3 1 3 2 2 1 1 3 4 3 3 4 1 7 0 6 7 1 6 3 8 7 2 1 1 2 1 2 2 1 5 0 8 8 4 9 9 7 5 2 1 1 3 1 1 1 1 6 0 9 7 1 6 8 1 2 7 1 6 1 3 3 2 3 2 2 2 2 2 2 2 2 1 7 5 5 7 2 5 3 3 7 1 5 0 7 2 3 7 9 7 9 1 1 1 1 2 3 1 5 0 9 5 5 7 9 2 3 2 9 1 1 1 2 2 2 1 6 0 6 1 2 7 1 1 6 1 1 1 1 1 3 3 5 5 1 3 1 3 3 6 1 8 0 9 1 1 6 8 8 7 7 5 8 1 1 1 3 2 1 1 2 1 5 0 6 1 6 3 9 7 1 3 2 1 3 1 1 9 0 11 3 2 2 2 1 7 5 6 6 1 7 1
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defmodule Day8 do
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def input() do
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File.stream!("input/day8.in")
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|> Stream.map(&String.trim/1)
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|> Enum.at(0)
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|> String.split()
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|> Enum.map(&String.to_integer/1)
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end
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def part1() do
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input()
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|> IO.inspect()
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end
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end
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Day8.part1()
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defmodule Day9 do
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def input() do
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input =
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File.stream!("input/day9.in")
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|> Stream.map(&String.trim/1)
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|> Enum.at(0)
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Regex.scan(~r/\d+/, input)
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|> Enum.map(&String.to_integer(hd(&1)))
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end
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def part1() do
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input()
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|> IO.inspect()
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end
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end
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Day9.part1()
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7 11 6 3 5 5 3 6 1 7 0 10 1 7 4 5 1 3 1 5 9 1 1 3 2 1 3 1 2 1 6 0 9 2 5 9 4 1 1 2 7 2 3 1 3 3 1 3 1 9 0 9 1 7 9 9 1 7 9 5 8 2 1 3 3 3 2 1 2 2 5 2 1 3 2 1 3 6 1 6 0 7 1 2 6 4 4 3 4 1 2 2 1 2 3 1 9 0 11 9 2 3 2 6 7 1 4 5 3 4 1 1 3 1 3 3 2 3 1 1 8 0 7 1 3 6 8 8 3 8 1 3 1 1 2 2 3 3 3 1 5 2 2 1 3 6 1 8 0 10 7 3 1 4 9 5 4 4 8 6 2 1 1 1 1 3 3 3 1 9 0 10 7 9 1 2 2 1 3 9 2 3 2 1 3 2 2 1 1 2 1 1 9 0 8 1 6 1 8 5 1 1 1 1 1 3 1 3 3 3 1 1 2 4 4 4 2 1 3 5 1 6 0 6 1 8 5 2 1 9 3 3 1 1 1 3 1 7 0 10 2 6 9 7 8 1 1 3 2 1 3 1 2 2 1 2 3 1 8 0 6 1 9 6 1 9 5 1 2 1 1 3 3 1 2 4 2 2 2 5 3 7 1 9 0 8 5 9 3 1 4 3 1 5 1 2 1 1 3 1 2 1 2 1 5 0 8 5 1 3 6 3 1 3 9 3 1 3 3 2 1 7 0 11 7 8 5 4 9 6 2 8 7 1 9 3 1 2 2 1 3 1 5 5 5 5 5 1 4 1 3 5 5 2 5 3 3 7 1 7 0 11 3 1 4 9 2 7 7 9 5 5 9 2 3 1 2 3 3 3 1 9 0 10 9 5 1 6 9 4 1 6 1 1 3 3 2 3 3 1 3 3 3 1 6 0 8 7 4 4 1 1 1 8 3 3 1 1 1 2 2 5 4 4 3 2 3 3 3 7 1 7 0 9 1 9 3 5 5 4 3 3 1 1 3 1 3 1 2 2 1 6 0 6 1 8 1 4 1 5 3 1 2 1 1 1 1 5 0 8 2 4 3 4 4 4 3 1 1 1 1 3 3 5 5 3 5 2 5 2 3 6 1 8 0 7 7 9 1 1 8 1 2 3 2 2 1 2 1 1 1 1 7 0 7 7 6 3 5 1 8 8 1 3 3 1 2 3 3 1 6 0 10 9 4 6 1 9 4 2 1 1 4 1 1 3 1 2 2 4 4 1 3 2 2 3 4 1 8 0 10 9 2 2 9 5 5 6 3 3 1 1 3 2 2 3 1 1 3 1 6 0 10 1 5 1 6 2 1 8 8 3 8 1 1 1 1 2 1 1 9 0 7 8 4 2 5 1 1 7 1 2 2 2 1 1 3 3 1 1 1 4 2 3 6 1 7 0 9 9 2 9 2 9 5 7 1 6 2 1 1 2 3 3 1 1 9 0 10 1 5 8 3 4 4 1 2 3 1 2 2 3 1 3 2 2 1 1 1 8 0 9 1 8 1 6 1 7 3 1 2 2 1 1 2 1 1 2 2 4 4 3 5 1 3 4 2 7 4 3 3 4 1 5 0 8 9 1 5 9 2 1 3 7 1 3 2 1 1 1 6 0 11 2 9 1 4 9 1 1 1 6 7 7 1 1 1 3 1 1 1 8 0 9 9 9 7 9 9 8 6 6 1 1 3 1 2 1 2 1 1 3 5 2 3 3 4 1 6 0 11 6 2 8 1 7 5 7 2 6 4 1 2 2 1 1 2 3 1 7 0 6 7 2 5 1 5 6 2 1 3 3 2 1 3 1 6 0 6 1 8 3 6 9 5 3 2 1 2 2 1 3 1 4 2 3 5 1 5 0 7 8 1 3 6 1 9 3 2 3 2 1 2 1 6 0 8 8 2 1 7 4 2 5 9 1 3 3 1 1 2 1 5 0 9 1 8 2 8 1 4 8 9 3 1 2 1 3 3 5 4 2 4 3 3 5 1 9 0 10 1 5 7 1 1 3 6 1 5 6 1 3 1 1 2 1 2 1 2 1 7 0 10 1 4 3 1 9 1 7 9 1 1 1 1 3 1 3 1 3 1 9 0 8 8 4 8 3 1 8 3 5 2 1 3 1 1 1 1 1 3 5 5 4 2 3 4 6 4 5 4 3 7 1 9 0 10 7 1 1 6 3 7 8 1 6 6 3 1 1 1 3 1 1 2 2 1 6 0 9 2 2 5 2 1 4 9 9 1 1 3 2 1 1 1 1 7 0 7 6 4 8 5 7 1 1 3 3 1 1 2 1 1 5 2 3 1 2 5 1 3 4 1 9 0 8 2 9 3 1 4 8 8 9 3 2 3 1 1 1 1 3 2 1 5 0 7 8 2 4 2 1 1 3 3 1 2 3 1 1 7 0 11 7 8 7 5 5 4 6 7 3 1 1 3 1 2 1 3 1 3 3 1 4 3 3 5 1 8 0 9 1 1 2 9 8 1 6 9 5 2 2 3 1 3 2 1 1 1 9 0 6 8 7 2 7 1 3 2 1 1 1 2 1 3 1 3 1 9 0 6 5 5 1 8 6 4 1 1 1 2 1 1 1 1 1 2 4 1 4 5 3 4 1 8 0 6 5 4 1 3 1 4 3 2 2 1 3 2 3 1 1 9 0 9 2 1 4 1 3 6 4 8 8 2 3 1 1 1 2 3 2 1 1 9 0 8 2 8 5 1 9 8 2 5 1 2 1 1 3 3 3 1 3 3 5 1 2 3 6 1 8 0 11 7 2 9 2 8 4 9 1 3 1 2 1 2 1 2 3 1 1 1 1 5 0 11 6 8 1 4 7 4 1 1 8 5 7 2 1 1 1 2 1 9 0 8 1 6 1 5 1 8 5 5 3 1 2 3 2 3 1 1 1 1 4 3 5 1 1 6 5 1 1 5 3 3 5 1 8 0 8 1 2 5 4 2 7 9 6 1 1 2 1 2 2 3 2 1 8 0 9 4 5 8 1 7 7 1 1 6 3 3 2 3 2 2 1 3 1 5 0 8 6 7 5 3 1 4 5 2 1 1 2 1 2 5 5 1 5 3 3 5 1 9 0 7 6 9 8 1 1 7 6 3 1 2 1 1 2 2 2 3 1 7 0 6 2 1 2 5 4 8 2 3 3 1 1 3 1 1 5 0 9 1 8 4 7 9 4 2 7 8 1 3 2 1 2 2 2 4 3 3 3 5 1 7 0 11 3 2 9 5 7 1 4 7 7 1 9 1 3 3 1 2 1 1 1 7 0 10 2 1 9 8 9 1 6 4 1 3 2 3 3 1 1 3 1 1 9 0 10 8 9 5 9 2 1 5 1 9 6 1 3 2 1 1 2 1 1 2 1 3 4 1 1 3 7 1 9 0 7 2 8 1 6 1 6 6 2 3 1 1 3 3 2 1 2 1 9 0 10 1 6 5 4 1 9 4 7 4 9 1 3 1 3 1 2 1 1 3 1 8 0 9 4 7 1 2 2 7 2 6 3 1 3 2 3 2 2 1 2 4 2 3 1 1 5 1 3 6 1 6 0 9 3 1 4 6 3 5 3 6 5 2 1 1 2 1 1 1 5 0 6 5 1 2 3 3 3 1 2 1 3 1 1 7 0 7 3 7 1 7 4 3 7 1 3 1 3 3 1 1 5 4 2 4 2 4 4 4 4 4 4 3 4 1 7 0 10 1 3 7 5 1 1 7 8 6 8 3 3 1 2 1 1 3 1 6 0 8 9 1 5 4 4 3 4 7 1 1 2 1 1 3 1 7 0 10 7 1 1 1 1 3 2 3 8 7 1 2 3 1 1 3 3 3 4 1 2 3 7 1 8 0 8 3 4 2 6 1 1 6 9 3 1 2 2 3 1 2 1 1 6 0 10 4 8 9 6 9 2 2 9 1 4 1 2 1 2 2 2 1 8 0 10 6 4 4 9 4 1 5 8 4 2 2 2 1 2 2 1 1 1 1 4 2 1 3 5 5 3 7 1 8 0 10 5 2 6 8 1 2 7 6 2 1 2 2 2 1 3 1 2 3 1 6 0 9 4 1 6 1 1 8 1 4 6 1 1 2 1 2 1 1 7 0 7 1 9 4 1 7 5 1 1 3 2 2 3 1 3 2 2 1 1 3 4 3 3 4 1 7 0 6 7 1 6 3 8 7 2 1 1 2 1 2 2 1 5 0 8 8 4 9 9 7 5 2 1 1 3 1 1 1 1 6 0 9 7 1 6 8 1 2 7 1 6 1 3 3 2 3 2 2 2 2 2 2 2 2 1 7 5 5 7 2 5 3 3 7 1 5 0 7 2 3 7 9 7 9 1 1 1 1 2 3 1 5 0 9 5 5 7 9 2 3 2 9 1 1 1 2 2 2 1 6 0 6 1 2 7 1 1 6 1 1 1 1 1 3 3 5 5 1 3 1 3 3 6 1 8 0 9 1 1 6 8 8 7 7 5 8 1 1 1 3 2 1 1 2 1 5 0 6 1 6 3 9 7 1 3 2 1 3 1 1 9 0 11 3 2 2 2 1 7 5 6 6 1 7 1
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459 players; last marble is worth 71320 points
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