C22213331333133313112331323133313331333133313232321333131211111133112123221   >>    C2221333133313331311233132313331333133313331323232133313121111113311212322   <<    C22213331333133313112331323133313331333133313232321333131211111133112123223   >>      C22213331333133313112331323133313331333133313232321333131211111133112123222   >>