C1231321123223331211111131211113313331333132313332223312123311331321   >>    C123132112322333121111113121111331333133313231333222331212331133132   <<    C1231321123223331211111131211113313331333132313332223312123311331323   >>      C1231321123223331211111131211113313331333132313332223312123311331322   >>