#yuki1090
n,d=map(int,input().split())
a=list(map(int,input().split()))
l=[0]*n
b=[0]
b.extend(a)
for i in range(n):
 l[i]=l[i-1]+b[i]
for i in range(1,n):
 if l[i]-l[i-1]<d:
  l[i]=l[i-1]+d
print(*l)