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#!/usr/bin/ruby
#
# See https://theweeklychallenge.org/blog/perl-weekly-challenge-149
#
#
# Run as: ruby ch-2.rb < input-file
#
A287298 = []
A287298[ 2] = "1"
A287298[ 3] = "1"
A287298[ 4] = "3201"
A287298[ 5] = "4301"
A287298[ 6] = "452013"
A287298[ 7] = "6250341"
A287298[ 8] = "47302651"
A287298[ 9] = "823146570"
A287298[10] = "9814072356"
A287298[11] = "A8701245369"
A287298[12] = "B8750A649321"
A287298[13] = "CBA504216873"
A287298[14] = "DC71B30685A924"
A287298[15] = "EDAC93B24658701"
A287298[16] = "FED5B39A42706C81"
A287298[17] = "GFED5A31C6B79802"
A287298[18] = "HGF80ADC53712EB649"
A287298[19] = "IHGFD3408C6E715A2B9"
A287298[20] = "JIHG03DAC457BFE96281"
A287298[22] = "LKJIG5D14B9032FHAC867E"
A287298[23] = "MLKJEFG5IC1D9H8042AB376"
A287298[24] = "NMLKJ2BD0639GFE7C8IH5A41"
A287298[25] = "ONMLKD8CJE2H47F6395I0B1AG"
ARGF . each_line do |n|
puts (A287298[n . to_i] || "Too hard to calculate")
end
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