C222133313331333131123313231333133313331333132112323133313223313132232311   >>    C22213331333133313112331323133313331333133313211232313331322331313223231   <<    C222133313331333131123313231333133313331333132112323133313223313132232313   >>      C222133313331333131123313231333133313331333132112323133313223313132232312   >>