C1231321123223331211111131211113313331333132313332313221323313221311   >>    C123132112322333121111113121111331333133313231333231322132331322131   <<    C1231321123223331211111131211113313331333132313332313221323313221313   >>      C1231321123223331211111131211113313331333132313332313221323313221312   >>