C222133313331333131123313231333133313331333132223133313331323123233313112211   >>    C22213331333133313112331323133313331333133313222313331333132312323331311221   <<    C222133313331333131123313231333133313331333132223133313331323123233313112213   >>      C222133313331333131123313231333133313331333132223133313331323123233313112212   >>