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