Controller Support Question(Limiting thumbstick to X movement only) How to?

I want to restrict this to X movement alone. I just started using newer features of Roblox and gamepads are harder than I thought. I'm making a Side-scrolling fighting game like Mortal Kombat.

game:GetService("UserInputService").InputChanged:connect(function(input, processed)
    if input.UserInputType == Enum.UserInputType.Gamepad1 then
        if input.KeyCode == Enum.KeyCode.Thumbstick1 then
            character.Humanoid:Move(Vector3.new(input.Position.X, 0, -input.Position.Y), true)
        end
    end
end)