s = input()
last = s[-1]
s = s[:-2]  

num = 0
total = 0

for i in s:
    if i != '-':
        num += 1
        cal = int(i) * num
        total += cal

mod = total % 11
if mod == last:
    print("Right")
else:
    print(f"{s}-{mod}")

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