defmodule Main do
  def main do
      s =
      IO.read(:line)
      |> String.trim
      |> String.to_charlist
	  if Enum.member?(s, ?a) and Enum.member?(s, ?b) and Enum.member?(s, ?c) do
    	IO.puts("Yes")
      else
    	IO.puts("No")
      end
  end
end