C11112331333132311331333133313331333132313311331333133313221212131   >>    C1111233133313231133133313331333133313231331133133313331322121213   <<    C11112331333132311331333133313331333132313311331333133313221212133   >>      C11112331333132311331333133313331333132313311331333133313221212132   >>