a, b, c, d = map(str, input().split('-'))
x = a+b+c
Sum = 0
for i in range(len(x)):
    Sum = Sum + int(x[i])*(i+1)
if Sum % 11 == int(d):
    print('Right')
elif Sum % 11 < 10:
    print(f'{a}-{b}-{c}-{Sum%11}')
elif Sum % 11 == 10:
    print(f'{a}-{b}-{c}-X')