while True:
    try:
        isbn=input()
        f="".join(list(isbn.split('-')))
        s=0
        for i in range(len(f)-1):
            s=(int(f[i])*(i+1))+s
        s=s%11
        if "X"==f[-1]:
            if s==10:
                print("Right")
            else:
                isbn=isbn[:-1]+str(s)
                print(isbn)   
    
        else:
            if s==int(f[-1]):
                print("Right")
            else:
                if s==10:
                    s="X"
                isbn=isbn[:-1]+str(s)
                print(isbn)
    except EOFError:
        break