C11111333133313232233133313331333131133132313331322121111132132311   >>    C1111133313331323223313331333133313113313231333132212111113213231   <<    C11111333133313232233133313331333131133132313331322121111132132313   >>      C11111333133313232233133313331333131133132313331322121111132132312   >>