N,D=map(int,input().split())
B=list(map(int,input().split()))
B.insert(0,0)
A=[0]*N
for i in range(N):
  A[i]=sum(B[:i+1])
for i in range(1,N):
  A[i]=max(A[i-1]+D,A[i])
print(" ".join(list(map(str,A))))