C11223331333132322331333131133132313331333131323133313123231311311   >>    C1122333133313232233133313113313231333133313132313331312323131131   <<    C11223331333132322331333131133132313331333131323133313123231311313   >>      C11223331333132322331333131133132313331333131323133313123231311312   >>