C11111333133313232233133313331333133313331311211331333133313331333133312231321   >>    C1111133313331323223313331333133313331333131121133133313331333133313331223132   <<    C11111333133313232233133313331333133313331311211331333133313331333133312231323   >>      C11111333133313232233133313331333133313331311211331333133313331333133312231322   >>