C1231321123223331211111131211113313331333132313331123311132231123221   >>    C123132112322333121111113121111331333133313231333112331113223112322   <<    C1231321123223331211111131211113313331333132313331123311132231123223   >>      C1231321123223331211111131211113313331333132313331123311132231123222   >>