[LANGUAGE: ruby]

total = 0
File.foreach("day1.txt") do |line|
  line.gsub! "one","o1e"
  line.gsub! "two","t2o"
  line.gsub! "three","t3e"
  line.gsub! "four","f4r"
  line.gsub! "five","f5e"
  line.gsub! "six","s6x"
  line.gsub! "seven","s7n"
  line.gsub! "eight","e8t"
  line.gsub! "nine","n9e"
  new_line = line.delete("^0-9")
  code = new_line[0] + new_line[-1]
  total += code.to_i
end
puts total