P1055

origin = input().split('-')

num = ''.join(origin[0:3])

def n(i):

x = 0
for t in range(0, len(i)):
    x += int(i[t]) * (t + 1)
x = x % 11
if x == 10:
    x = 'X'
return str(x)

m = n(num)

if m == origin[-1]:

print('Right')

else:

origin[-1] = m
print('-'.join(origin))