N,D=map(int,input().split())
a=[0]+list(map(int,input().split()))

#print(a)
b=[0]
for i in range(1,N):
    b.append(b[-1]+a[i])
#print(b)
for i in range(1,N):
    if b[i]-b[i-1]<D:
        b[i]=b[i-1]+D
print(*b)