C22212323232133313113313331333132313331323231323323233313223222321   >>    C2221232323213331311331333133313231333132323132332323331322322232   <<    C22212323232133313113313331333132313331323231323323233313223222323   >>      C22212323232133313113313331333132313331323231323323233313223222322   >>