C1231321123223331211111131211113313331333132313332323232213122232321   >>    C123132112322333121111113121111331333133313231333232323221312223232   <<    C1231321123223331211111131211113313331333132313332323232213122232323   >>      C1231321123223331211111131211113313331333132313332323232213122232322   >>