N, D = map(int, input().split()) # 人数, 必要距離
a = list(map(int, input().split())) # デフォ位置

pre = 0
print(0, end = " ")
for now in a:
    if (pre + D > now):
        now = pre + D
    print(now, end = " ")
    pre = now

print() # 改行