C1231321123223331211111131211113313331333132313332313221323323232233231   >>    C123132112322333121111113121111331333133313231333231322132332323223323   <<    C1231321123223331211111131211113313331333132313332313221323323232233233   >>      C1231321123223331211111131211113313331333132313332313221323323232233232   >>