N, D = map(int,input().split())
*inp,=map(int,input().split())
ichi=[0]
for j in range(N-1):
    ichi.append(ichi[j]+inp[j])
for i in range(N-1):
    if ichi[i+1] - ichi[i] < D:
        ichi[i+1] = ichi[i] + D
for k in ichi:
    print(k,end=' ')