C1231321123223331211111131211113313331333133313223223312232322311131   >>    C123132112322333121111113121111331333133313331322322331223232231113   <<    C1231321123223331211111131211113313331333133313223223312232322311133   >>      C1231321123223331211111131211113313331333133313223223312232322311132   >>