C11112331333132311331333133313331333132313311331333133313112233331   >>    C1111233133313231133133313331333133313231331133133313331311223333   <<    C11112331333132311331333133313331333132313311331333133313112233333   >>      C11112331333132311331333133313331333132313311331333133313112233332   >>