C22212323232133313113313331333132313331323132223313223332331231   >>    C2221232323213331311331333133313231333132313222331322333233123   <<    C22212323232133313113313331333132313331323132223313223332331233   >>      C22212323232133313113313331333132313331323132223313223332331232   >>