C31231211111133131211113313331333133313332233132313331323132312211111   >>    C3123121111113313121111331333133313331333223313231333132313231221111   <<    C31231211111133131211113313331333133313332233132313331323132312211113   >>      C31231211111133131211113313331333133313332233132313331323132312211112   >>