Picking random animation every time isn't working, error "Invalid Animation Id"?

I have this script under StarterCharacterScripts that is supposed to choose a random animation every time the key "F" is pressed, but I get the error listed above.

Here is my code:

local player = game.Players.LocalPlayer
repeat wait() until player.Character
local character = player.Character
local deb = false
local anim1 = Instance.new("Animation")
local anim2 = Instance.new("Animation")
anim1.AnimationId = 4958723922
anim2.AnimationId = 4958704831
local track1 = character:FindFirstChild("Humanoid"):LoadAnimation(anim1)
local track2 = character:FindFirstChild("Humanoid"):LoadAnimation(anim2)
local random = Random.new(track1, track2)
local UIS = game:GetService("UserInputService")
UIS.InputBegan:Connect(function(input, proc)
    if not proc then
        if input.KeyCode == Enum.KeyCode.F and deb == false then
            deb = true
            random:Play()
            wait(1)
            deb = false
        end
    end
end)

Please help me fix this, I think it's something to do with using "Random" instead of an ID, but I don't know any other way to do this.