import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int d = sc.nextInt();
        int[] arr = new int[n];
        int[] ans = new int[n];
        StringBuilder sb = new StringBuilder();
        sb.append(0);
        for (int i = 1; i < n; i++) {
            arr[i] = sc.nextInt() + arr[i - 1];
            ans[i] = Math.max(arr[i], ans[i - 1] + d);
            sb.append(" ").append(ans[i]);
        }
        System.out.println(sb);
    }
}