C11111333133313232233133313331333131133132313331322121111331213131   >>    C1111133313331323223313331333133313113313231333132212111133121313   <<    C11111333133313232233133313331333131133132313331322121111331213133   >>      C11111333133313232233133313331333131133132313331322121111331213132   >>