#prepare the input which is a string containing new lines
def parse(input)
  data = []
  input.each_line do |line|
    winners, draw = line.split(":").last.split("|")
    winners =winners.split(" ").map {|entry| entry.strip.to_i }
    draw = draw.split(" ").map {|entry| entry.strip.to_i }
    data << [winners,draw]
  end
  data
end

# result should a single string or integer
def calculate(data)
  result = 0
  data.each do |d|
    win = 0
    winners, draw = d
    matches = (winners & draw).length
    win = if matches == 0
      0
    else
      2**(matches-1)
    end
    result += win
  end
  result
end