C1231321123223331211111131211113313331333132313332323232211313233231   >>    C123132112322333121111113121111331333133313231333232323221131323323   <<    C1231321123223331211111131211113313331333132313332323232211313233233   >>      C1231321123223331211111131211113313331333132313332323232211313233232   >>