#include <iostream>
using namespace std;
int main(void){
    // Your code here!
    int sum = 6000;
    int x;
    for (int i = 0; i < 7; i++) {
        cin >> x;
        if (x == -1 || sum == -1) sum = -1;
        else sum = max(-1, sum-x);
        cout << sum << endl;
    }
}