C1111233131211111211113313331333131133132321233133313113313232213233122331   >>    C111123313121111121111331333133313113313232123313331311331323221323312233   <<    C1111233131211111211113313331333131133132321233133313113313232213233122333   >>      C1111233131211111211113313331333131133132321233133313113313232213233122332   >>