C111113331333132322331333133313331333132313123313231333131133132313111   >>    C11111333133313232233133313331333133313231312331323133313113313231311   <<    C111113331333132322331333133313331333132313123313231333131133132313113   >>      C111113331333132322331333133313331333132313123313231333131133132313112   >>