C11112331333132311331333133313331333132313311331333133313221323123133121   >>    C1111233133313231133133313331333133313231331133133313331322132312313312   <<    C11112331333132311331333133313331333132313311331333133313221323123133123   >>      C11112331333132311331333133313331333132313311331333133313221323123133122   >>