C222133313331333131123313231333133313331333132213331333131313233211   >>    C22213331333133313112331323133313331333133313221333133313131323321   <<    C222133313331333131123313231333133313331333132213331333131313233213   >>      C222133313331333131123313231333133313331333132213331333131313233212   >>