C222133313331333131123313231333133313331333131123313233222223311   >>    C22213331333133313112331323133313331333133313112331323322222331   <<    C222133313331333131123313231333133313331333131123313233222223313   >>      C222133313331333131123313231333133313331333131123313233222223312   >>