C11231323321111331312111133133313331323223313231333131133132313331333132321111   >>    C1123132332111133131211113313331333132322331323133313113313231333133313232111   <<    C11231323321111331312111133133313331323223313231333131133132313331333132321113   >>      C11231323321111331312111133133313331323223313231333131133132313331333132321112   >>