C13131221323331323131323132323213231323131323223313233313232223321   >>    C1313122132333132313132313232321323132313132322331323331323222332   <<    C13131221323331323131323132323213231323131323223313233313232223323   >>      C13131221323331323131323132323213231323131323223313233313232223322   >>