C222133313331333131123313231333133313331333132312111112111112122211   >>    C22213331333133313112331323133313331333133313231211111211111212221   <<    C222133313331333131123313231333133313331333132312111112111112122213   >>      C222133313331333131123313231333133313331333132312111112111112122212   >>