C22212323232133313113313331333132313231333132313222131131313221   >>    C2221232323213331311331333133313231323133313231322213113131322   <<    C22212323232133313113313331333132313231333132313222131131313223   >>      C22212323232133313113313331333132313231333132313222131131313222   >>