from numpy import diff


def main():
    N, D = map(int, input().split())
    others = list(map(int, input().split()))
    moved = [0]

    for person in others:
        if person - moved[-1] < D:
            moved.append(moved[-1] + D)
        else:
            moved.append(person)
    print(*moved)


if __name__ == "__main__":
    main()