#!/usr/bin/env python3

N, D = map(int, input().split())
A = list(map(int, input().split()))

Ret = [0]
x = 0
for a in A:
    x += a
    if x-Ret[-1] < D:
        Ret.append(Ret[-1]+D)
    else:
        Ret.append(x)

print(*Ret)