C31231211113313121211113313331323133313331333133313332233133321311   >>    C3123121111331312121111331333132313331333133313331333223313332131   <<    C31231211113313121211113313331323133313331333133313332233133321313   >>      C31231211113313121211113313331323133313331333133313332233133321312   >>