t">Add Dataset</button>
    <button id="removeDataset">Remove Dataset</button>
    <button id="addData">Add Data</button>
    <button id="removeData">Remove Data</button>
    <script>
    var randomScalingFactor = function() {
        return Math.round(Math.random() * 100);
    };

    var config = {
        type: 'doughnut',
        data: {
            datasets: [{
                data: [
                    randomScalingFactor(),
                    randomScalingFactor(),
                 