C1231321123223331211111131211113313331333133313223223312221333222331   >>    C123132112322333121111113121111331333133313331322322331222133322233   <<    C1231321123223331211111131211113313331333133313223223312221333222333   >>      C1231321123223331211111131211113313331333133313223223312221333222332   >>