def main():
    T = list(map(int ,input().split()))
    ans = 0
    flg = True
    for t in T:
        if flg:
            if t >= 0:
                ans += t
                if 6000 - ans >= 0:
                    print(6000 - ans)
                else:
                    print(-1)
            else:
                flg = False
                print(-1)
        else:
            print(-1)
      


if __name__ == "__main__":
    main()
#    main2()