C222133313331333131123313231333133313331333132112111133132223211   >>    C22213331333133313112331323133313331333133313211211113313222321   <<    C222133313331333131123313231333133313331333132112111133132223213   >>      C222133313331333131123313231333133313331333132112111133132223212   >>