C31231211111133131211113313231333133313331333131333133313331323232331   >>    C3123121111113313121111331323133313331333133313133313331333132323233   <<    C31231211111133131211113313231333133313331333131333133313331323232333   >>      C31231211111133131211113313231333133313331333131333133313331323232332   >>