C22213331333133313112331323133313331333133313221333133313112232131211   >>    C2221333133313331311233132313331333133313331322133313331311223213121   <<    C22213331333133313112331323133313331333133313221333133313112232131213   >>      C22213331333133313112331323133313331333133313221333133313112232131212   >>