C11231323321111331312111133133313331323223313231333131133132313331322321333111   >>    C1123132332111133131211113313331333132322331323133313113313231333132232133311   <<    C11231323321111331312111133133313331323223313231333131133132313331322321333113   >>      C11231323321111331312111133133313331323223313231333131133132313331322321333112   >>