C31231211113313121211113313331323133313331333132212111133132311221123231221   >>    C3123121111331312121111331333132313331333133313221211113313231122112323122   <<    C31231211113313121211113313331323133313331333132212111133132311221123231223   >>      C31231211113313121211113313331323133313331333132212111133132311221123231222   >>