C1231321123223331211111131211113313331333132313331333121333321323213221211   >>    C123132112322333121111113121111331333133313231333133312133332132321322121   <<    C1231321123223331211111131211113313331333132313331333121333321323213221213   >>      C1231321123223331211111131211113313331333132313331333121333321323213221212   >>