C111123313121111121111331333133313331323131333131133133313331311212233231   >>    C11112331312111112111133133313331333132313133313113313331333131121223323   <<    C111123313121111121111331333133313331323131333131133133313331311212233233   >>      C111123313121111121111331333133313331323131333131133133313331311212233232   >>