C1231321123223331211111131211113313331333133313223223312231311132311   >>    C123132112322333121111113121111331333133313331322322331223131113231   <<    C1231321123223331211111131211113313331333133313223223312231311132313   >>      C1231321123223331211111131211113313331333133313223223312231311132312   >>