C11111333133313232233133313331333132313331323321313331323331313231111   >>    C1111133313331323223313331333133313231333132332131333132333131323111   <<    C11111333133313232233133313331333132313331323321313331323331313231113   >>      C11111333133313232233133313331333132313331323321313331323331313231112   >>