C31231211111133131211113313331333133313331323223313231121132311   >>    C3123121111113313121111331333133313331333132322331323112113231   <<    C31231211111133131211113313331333133313331323223313231121132313   >>      C31231211111133131211113313331333133313331323223313231121132312   >>