while True:
    try:
        n = int(input())
        if n == 0:
            print(0)
        else:
            ans = []
            while n != 0:
                a = n % 3
                if a == 0:
                    ans.append("0")
                    n //= 3
                elif a == 1:
                    ans.append("1")
                    n //= 3
                else:
                    ans.append("-")
                    n = n // 3 + 1
            print("".join(ans[::-1]))
    except:
        break