"can you make me a script that allows every player to have a animation for run, walk, idle, and jump. comments to tell me where to put it"

-- server script (ServerScriptService) 
game.Players.PlayerAdded:Connect(function(player)
    local humanoid = player.CharacterAdded:Wait():WaitForChild('Humanoid')
    humanoid.Running:Connect(function(speed)
        if speed > 0 then
            -- Run animation
            humanoid:LoadAnimation(game.ServerStorage.Run):Play()
        else
            -- Idle animation
            humanoid:LoadAnimation(game.ServerStorage.Idle):Play()
        end
    end)
    humanoid.Jumping:Connect(function()
        -- Jump animation
        humanoid:LoadAnimation(game.ServerStorage.Jump):Play()
    end)
    humanoid.Walking:Connect(function(speed)
        if speed > 0 then
            -- Walk animation
            humanoid:LoadAnimation(game.ServerStorage.Walk):Play()
        else
            -- Idle animation
            humanoid:LoadAnimation(game.ServerStorage.Idle):Play()
        end
    end)
end)

-- You need to put this script in ServerScriptService. 
You also need to have the animations (Run, Walk, Idle, Jump) in ServerStorage with the exact same names. 
Each player's character needs to have a humanoid for this script to work.