C11111333133313232233133313331333133313233213331323133313123132321   >>    C1111133313331323223313331333133313331323321333132313331312313232   <<    C11111333133313232233133313331333133313233213331323133313123132323   >>      C11111333133313232233133313331333133313233213331323133313123132322   >>