C1111233131211111211113313331333133313331312331333132323213312331   >>    C111123313121111121111331333133313331333131233133313232321331233   <<    C1111233131211111211113313331333133313331312331333132323213312333   >>      C1111233131211111211113313331333133313331312331333132323213312332   >>