C31231211111133131211113313331333133313332233132313331333132331111311   >>    C3123121111113313121111331333133313331333223313231333133313233111131   <<    C31231211111133131211113313331333133313332233132313331333132331111313   >>      C31231211111133131211113313331333133313332233132313331333132331111312   >>