C222133313331333131123313231333133313331333132331211331323133112111113223221   >>    C22213331333133313112331323133313331333133313233121133132313311211111322322   <<    C222133313331333131123313231333133313331333132331211331323133112111113223223   >>      C222133313331333131123313231333133313331333132331211331323133112111113223222   >>