C11112331333132311331333133313331333132313311331333133313123232213131   >>    C1111233133313231133133313331333133313231331133133313331312323221313   <<    C11112331333132311331333133313331333132313311331333133313123232213133   >>      C11112331333132311331333133313331333132313311331333133313123232213132   >>