C2221232323213331311331333133313331323132313331333112123122132112233232321   >>    C222123232321333131133133313331333132313231333133311212312213211223323232   <<    C2221232323213331311331333133313331323132313331333112123122132112233232323   >>      C2221232323213331311331333133313331323132313331333112123122132112233232322   >>