input = File.read(ARGV[0]) a = 0 b = 0 enabled = true input.scan(/(mul\((\d+),(\d+)\)|do\(\)|don't\(\))/).each { if _1[0] == "do()" enabled = true elsif _1[0] == "don't()" enabled = false else x = _1[1].to_i * _1[2].to_i a += x b += x if enabled end } puts a puts b