while True:
	try:
		i,s,b,n=map(str,raw_input().strip().split('-'))
		x=i+s+b
		li=[i,s,b]
		s=0
		k=1
		for j in range(len(x)):
			s+=int(x[j])*k
			k+=1
		ys=s%11
		if (ys==10 and n=='X') or (str(ys)==n):
			print 'Right'
		else:
			lj='-'
			if ys==10:
				li.append('X')
			else:
				li.append(str(s%11))
			print lj.join(li)
	except EOFError:
		break