#!/usr/bin/env python3

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

Move = [0 for i in range(N)]
M = 0

for i in range(1, N):
    d = A[i] - A[i-1]
    if d < D:
        M += D-d
        Move[i] = M

Ret = []

for i in range(N):
    Ret.append(A[i]+Move[i])

print(*Ret)