/* -*- coding: utf-8 -*-
 *
 * 1090.cc:  No.1090 ソーシャルディスタンス / Social Distance - yukicoder
 */

#include<cstdio>
#include<cstdlib>
#include<cstring>
#include<cmath>
#include<iostream>
#include<string>
#include<vector>
#include<map>
#include<set>
#include<stack>
#include<list>
#include<queue>
#include<deque>
#include<algorithm>
#include<numeric>
#include<utility>
#include<complex>
#include<functional>
 
using namespace std;

/* constant */

/* typedef */

/* global variables */

/* subroutines */

/* main */

int main() {
  int n, d;
  scanf("%d%d", &n, &d);

  putchar('0');

  for (int i = 1, x = 0, p = 0; i < n; i++) {
    int ai;
    scanf("%d", &ai);

    p += ai;
    x = max(x + d, p);
    printf(" %d", x);
  }

  putchar('\n');
  return 0;
}