s=input()
li=s.split('-')
s1="".join(li)
sum=0
j=0
for i in range(0,len(s1)-1):
sum=sum+int(s1[i])*(i+1)
sum=str(sum%11)
if sum==10:
sum='X'
if sum==s[-1]:
print('Right')
else:
s="-".join(li[0:3])
s=s+'-'+sum
print(s)