C222133313331333131123313231333133313331333132213331333131122233313311   >>    C22213331333133313112331323133313331333133313221333133313112223331331   <<    C222133313331333131123313231333133313331333132213331333131122233313313   >>      C222133313331333131123313231333133313331333132213331333131122233313312   >>