C22212323232133313113313331333132313331323231323323233311331231   >>    C2221232323213331311331333133313231333132323132332323331133123   <<    C22212323232133313113313331333132313331323231323323233311331233   >>      C22212323232133313113313331333132313331323231323323233311331232   >>