while True:
    try:
        s = input()
        s1 = s.replace("-","")
        d = sum([int(s1[i])*(i+1) for i in range(len(s1)-1)])%11
        if d==10:
            if s[-1] == "X":
                print("Right")
            else:
                print(s[:-1]+"X")
        else:
            if s[-1] == str(d):
                print("Right")
            else:
                print(s[:-1]+str(d))            
    except EOFError:
        break