C1111133313331323223313331333133313311211111211331333231323112111   >>    C111113331333132322331333133313331331121111121133133323132311211   <<    C1111133313331323223313331333133313311211111211331333231323112113   >>      C1111133313331323223313331333133313311211111211331333231323112112   >>