n,d = map(int,input().split())
a = list(map(int,input().split()))
l = [0]
for i in range(n-1):
    l.append(l[i]+a[i])
for i in range(1,n):
    if l[i] - l[i-1] < d:
        l[i] = l[i-1] + d
print(" ".join(map(str,l)))