#include <bits/stdc++.h>
using namespace std;

int main() {
  int N, D;
  cin >> N >> D;
  vector A(N, 0);
  for (int i = 1, a; cin >> a; i++) {
    A.at(i) = A.at(i - 1) + a;
  }
  for (int i = 1; i < N; i++) {
    if (A.at(i) - A.at(i - 1) < D) A.at(i) = A.at(i - 1) + D;
  }
  for (int i = 0; i < N; i++) {
    if (i != 0) cout << " ";
    cout << A.at(i);
  }
  cout << "\n";
}