C31231211113313121211113313331323133313331333132213331323311231   >>    C3123121111331312121111331333132313331333133313221333132331123   <<    C31231211113313121211113313331323133313331333132213331323311233   >>      C31231211113313121211113313331323133313331333132213331323311232   >>