C31231211111133131211113313331323133313331311233133313332233132322321132311   >>    C3123121111113313121111331333132313331333131123313331333223313232232113231   <<    C31231211111133131211113313331323133313331311233133313332233132322321132313   >>      C31231211111133131211113313331323133313331311233133313332233132322321132312   >>