C11112331312111112111133132313331333133313232213331333112132231   >>    C1111233131211111211113313231333133313331323221333133311213223   <<    C11112331312111112111133132313331333133313232213331333112132233   >>      C11112331312111112111133132313331333133313232213331333112132232   >>