#include <iostream>
#include <vector>
#include <algorithm>

using namespace std;

int main()
{
  int t[7];
  for (int i = 0; i < 7; ++i) cin >> t[i];
  int nok = 6000;
  for (int i = 0; i < 7; ++i)
  {
    if (t[i] == -1 || nok < t[i])
    {
      nok = -2;
      cout << "-1\n";
    }
    else
    {
      nok -= t[i];
      cout << nok << '\n';
    }
  }
}