verbose.rb

def self.parse(string)
  sum = 0
  char_array = string.split
  char_array.each_with_index do |char, i|
    sum += char.to_i
    next unless char == '-' && char_array[i + 2]
    if char_array[i + 2].to_i == 0
      char_array[i + 1] = char + char_array[i + 1]
    else
      char_array[i + 2] = char + char_array[i + 2]
    end
  end
  sum
end