C11112331312111112111133133313331333133313331333133313331333133313231221333131   >>    C1111233131211111211113313331333133313331333133313331333133313331323122133313   <<    C11112331312111112111133133313331333133313331333133313331333133313231221333133   >>      C11112331312111112111133133313331333133313331333133313331333133313231221333132   >>