func main()
	var n: int :: cui@inputInt()
	var d: int :: cui@inputInt()
	var a: []int :: #[n]int
	for i(1, n - 1)
		do a[i] :: a[i - 1] + cui@inputInt()
	end for
	
	for i(0, n - 1)
		if(i <> 0)
			do a[i] :: [a[i], a[i - 1] + d].max()
		end if
		do cui@print("\{a[i]}" ~ (i <> n - 1 ?(" ", "\n")))
	end for
end func