Why won't the animation play when the player presses F?

I don't know too much about animations sooo idk what I did wrong

game.Players.PlayerAdded:Connect(function(plr)
local UIS = game:GetService("UserInputService")
UIS.InputBegan:Connect(function(key)
	if key.KeyCode == Enum.KeyCode.F then
		local animation = Instance.new("Animation")
animation.AnimationId = "3560009028"
local animTrack = nil
local canPlay = true
 
function playShockAnim()
    if canPlay then
        local player = plr
        canPlay = false
        animTrack = player.Humanoid:LoadAnimation(animation)
        canPlay = true
        animTrack:Play()
    end
end
 
playShockAnim(plr)
	end
end)
end)

Ok so your formatting is a little confusing but when a rearranged it, it looks like this

game.Players.PlayerAdded:Connect(function(plr)
local UIS = game:GetService("UserInputService")
UIS.InputBegan:Connect(function(key)
    if key.KeyCode == Enum.KeyCode.F then
		local animation = Instance.new("Animation")
		animation.AnimationId = "3560009028"
		local animTrack = nil
		local canPlay = true
	
		function playShockAnim()
			if canPlay then
	       	 	local player = plr
	        	canPlay = false
		        animTrack = player.Humanoid:LoadAnimation(animation)
	        	canPlay = true
	       		animTrack:Play()
			end
		end
		playShockAnim(plr)
	end
end)
end) -- extra end)?

I don't understand why you have a function defined when the player presses f instead of just doing what the function does. The real problem is that the animation ID should be "rbxassetid://3560009028" instead of just "3560009028", which is probably why your animation isn't playing, also you should make your animation priority higher so it doesn't get interupted by movement animations.