N, D = map(int, input().split())
a = list(map(int, input().split()))
ans = [0]
a = [0] + a
# print("a =", a)
for i in range(1, N):
    gap = a[i] - a[i - 1]
    if gap < D:
#         ans += D
        a[i] = a[i - 1] + D
    else:
        a[i] = ans[-1] + a[i]
    ans.append(a[i])
print(*ans)