N, D = gets.split.map(&:to_i)
A = gets.split.map(&:to_i)
B = [0]
A.each do |a|
  B << B.last + a
end

pos = 0
ans = [0]

B[1..-1].each do |b|
  np = pos + D

  if np <= b
    ans << b
    pos = b
  else
    ans << np
    pos = np
  end
end

puts ans.join(' ')