C22212323232133313113313331333132313331311211112111132213112121   >>    C2221232323213331311331333133313231333131121111211113221311212   <<    C22212323232133313113313331333132313331311211112111132213112123   >>      C22212323232133313113313331333132313331311211112111132213112122   >>