while True:
	try:
		bm=raw_input()
		bmn=bm.replace("-","")
		sum=0
		for i in range(len(bmn)-1):
			sum+=int(bmn[i])*(i+1)	
		t=sum % 11
		if t==10:
			s="X"
		else:
			s=str(t)		
		if s==bmn[len(bmn)-1]:
			print "Right"
		else:
			print bm[:len(bm)-1]+s		
	except EOFError:
		break