import sys; input = sys.stdin.buffer.readline
sys.setrecursionlimit(10**7)
from collections import defaultdict
con = 10 ** 9 + 7; INF = float("inf")

def getlist():
	return list(map(int, input().split()))

#処理内容
def main():
	N, D = getlist()
	A = getlist()
	Asum = [0]
	for i in range(N - 1):
		Asum.append(Asum[-1] + A[i])

	ans = [0]
	for i in range(N - 1):
		ans.append(max(ans[-1] + D, Asum[i + 1]))

	print(*ans)




if __name__ == '__main__':
	main()