N,D=map(int,input().split())
a=[0]+list(map(int,input().split()))
x=[0]*N
for i in range(1,N):
    x[i]=x[i-1]+a[i]

print("0",end="") #0番
for i in range(1,N):
    x[i]=max(x[i-1]+D,x[i])
    print(" "+str(x[i]),end="") #1~N-1番
print("")