C11112331333132311331333133313331333132311213331333133313231323222232131123231   >>    C1111233133313231133133313331333133313231121333133313331323132322223213112323   <<    C11112331333132311331333133313331333132311213331333133313231323222232131123233   >>      C11112331333132311331333133313331333132311213331333133313231323222232131123232   >>