C11112331333132311331333133313331333132313311331333133313332111121132121   >>    C1111233133313231133133313331333133313231331133133313331333211112113212   <<    C11112331333132311331333133313331333132313311331333133313332111121132123   >>      C11112331333132311331333133313331333132313311331333133313332111121132122   >>