C1231321123223331211111131211113313331333132313332323232211212223331   >>    C123132112322333121111113121111331333133313231333232323221121222333   <<    C1231321123223331211111131211113313331333132313332323232211212223333   >>      C1231321123223331211111131211113313331333132313332323232211212223332   >>