C11112331333132311331333133313331333132311213331333133312111112212231   >>    C1111233133313231133133313331333133313231121333133313331211111221223   <<    C11112331333132311331333133313331333132311213331333133312111112212233   >>      C11112331333132311331333133313331333132311213331333133312111112212232   >>