C22212323232133313113313331333133313231323132222123121223322331   >>    C2221232323213331311331333133313331323132313222212312122332233   <<    C22212323232133313113313331333133313231323132222123121223322333   >>      C22212323232133313113313331333133313231323132222123121223322332   >>