defmodule Main do
  def main do
    toi = &String.to_integer/1
    split = &String.split/1

    [n, m, k] = IO.gets("") |> split.() |> Enum.map(toi)
    [op | b] = IO.gets("") |> split.()
    b = Enum.map(b, toi) |> Enum.sum() |> (&rem(&1,k)).()

    Enum.map(1..n, fn _ ->
      a = IO.gets("") |> String.trim |> toi.()
      if op == "+", do: rem(a*m + b, k),
      else: rem(a * b, k)
    end) |> Enum.sum |> (&rem(&1, k)).() |> IO.puts
  end
end