C22212323232133313113313331333133313231323132222123121112113131   >>    C2221232323213331311331333133313331323132313222212312111211313   <<    C22212323232133313113313331333133313231323132222123121112113133   >>      C22212323232133313113313331333133313231323132222123121112113132   >>