C31231211111133131211113313331333132233133313331333132233132313112121   >>    C3123121111113313121111331333133313223313331333133313223313231311212   <<    C31231211111133131211113313331333132233133313331333132233132313112123   >>      C31231211111133131211113313331333132233133313331333132233132313112122   >>