C1231321123223331211111131211113313331333132313332313221323132113223321   >>    C123132112322333121111113121111331333133313231333231322132313211322332   <<    C1231321123223331211111131211113313331333132313332313221323132113223323   >>      C1231321123223331211111131211113313331333132313332313221323132113223322   >>