C11111333133313232233133313331333133313233213331323133313232222333123231   >>    C1111133313331323223313331333133313331323321333132313331323222233312323   <<    C11111333133313232233133313331333133313233213331323133313232222333123233   >>      C11111333133313232233133313331333133313233213331323133313232222333123232   >>