C1111133313331333121121133133313331333132313331333133313231121231   >>    C111113331333133312112113313331333133313231333133313331323112123   <<    C1111133313331333121121133133313331333132313331333133313231121233   >>      C1111133313331333121121133133313331333132313331333133313231121232   >>