C11112331312111112111133133313331333132212111133133313331333131133132313111   >>    C1111233131211111211113313331333133313221211113313331333133313113313231311   <<    C11112331312111112111133133313331333132212111133133313331333131133132313113   >>      C11112331312111112111133133313331333132212111133133313331333131133132313112   >>