C1231321123223331211111131211113313331333132313332323232232331121   >>    C123132112322333121111113121111331333133313231333232323223233112   <<    C1231321123223331211111131211113313331333132313332323232232331123   >>      C1231321123223331211111131211113313331333132313332323232232331122   >>