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

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

dist = [0]

for i in range(n-1):
    dist.append(dist[i]+a[i])
    
for i in range(1,n):
    if dist[i] - dist[i-1] < d:
        dist[i] = dist[i-1] + d
        
for i in dist:
    print(i, end=" ")