C111112111133131121133133313331333132313232233133313231333232311111   >>    C11111211113313112113313331333133313231323223313331323133323231111   <<    C111112111133131121133133313331333132313232233133313231333232311113   >>      C111112111133131121133133313331333132313232233133313231333232311112   >>