C11112331312111112111133132313331333133313232213331333131122131   >>    C1111233131211111211113313231333133313331323221333133313112213   <<    C11112331312111112111133132313331333133313232213331333131122133   >>      C11112331312111112111133132313331333133313232213331333131122132   >>