C11112331333132311331333133313331333132311213331333133313232311233131   >>    C1111233133313231133133313331333133313231121333133313331323231123313   <<    C11112331333132311331333133313331333132311213331333133313232311233133   >>      C11112331333132311331333133313331333132311213331333133313232311233132   >>