C11111333133313232233133313331333131133132313331322121111123221323131   >>    C1111133313331323223313331333133313113313231333132212111112322132313   <<    C11111333133313232233133313331333131133132313331322121111123221323133   >>      C11111333133313232233133313331333131133132313331322121111123221323132   >>