C2221232323213331311331333133313331323133311212322132221133131121311   >>    C222123232321333131133133313331333132313331121232213222113313112131   <<    C2221232323213331311331333133313331323133311212322132221133131121313   >>      C2221232323213331311331333133313331323133311212322132221133131121312   >>