C1111233131211111211113313331333133313331312331333131133132323213331323223331   >>    C111123313121111121111331333133313331333131233133313113313232321333132322333   <<    C1111233131211111211113313331333133313331312331333131133132323213331323223333   >>      C1111233131211111211113313331333133313331312331333131133132323213331323223332   >>