C11111333133313232233133313331333132313331323321313331333132233313233121   >>    C1111133313331323223313331333133313231333132332131333133313223331323312   <<    C11111333133313232233133313331333132313331323321313331333132233313233123   >>      C11111333133313232233133313331333132313331323321313331333132233313233122   >>