N,D=map(int, input().split())
a=[int(i) for i in input().split()]
b=[0]
for i in range(0,len(a)):
    b.append(a[i]+b[i])
for i in range(1,len(b)):
    if b[i]-b[i-1] < D:
        b[i]=b[i-1]+D

print(*b)