n, d = map(int, input().split())

A = list(map(int, input().split()))

ans = [0] * n
   
for i in range(1, n):
    ans[i] = ans[i- 1] + A[i - 1]

for i in range(1, n):
    ans[i] = max(ans[i], ans[i - 1] + d)
print(*ans)