C11111333133313232233133313331333133313233213331323132112323131   >>    C1111133313331323223313331333133313331323321333132313211232313   <<    C11111333133313232233133313331333133313233213331323132112323133   >>      C11111333133313232233133313331333133313233213331323132112323132   >>