C1231321123223331211111131211113313331333132313332313232332212233122321   >>    C123132112322333121111113121111331333133313231333231323233221223312232   <<    C1231321123223331211111131211113313331333132313332313232332212233122323   >>      C1231321123223331211111131211113313331333132313332313232332212233122322   >>