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Created April 22, 2016 15:41
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playing.rb
#!/usr/bin/ruby
a, b = gets.chomp.split(/ /).map(&:to_i)
sum = a + b
if a.between?(1, 9) && b.between?(1, 9)
puts sum
else
puts "Wrong input, a and b should be integers within the 0..9 range."
end
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