# -*- coding: utf-8 -*-
def payable_details_helper(purchase_id, paying_id)
	return '1' if purchase_id.to_i > 0
	return '2' if paying_id.to_i > 0
	return '0'
end

csv = '/tmp/payable_details.csv'

open(csv) do |file|
  while line = file.gets()
    array = line.split(',')
    array[2] = payable_details_helper(array[3],array[4])
    puts array.inject{|r,i| r + "," + i}
  end
end