mb-2">
        <label for="lessons">Lessons:</label>
        <input type="number" min="10" max="200" value="50" size="3" id="lessons"/>
        <button id="createButton" type="button" class="btn btn-success">
                <span class="fas fa-play"></span> Create & send
        </button>
    </div>
    <div class="container" id="content">
        <table class="table table-borderless table-striped" id="datasets">
            <thead>
            <tr>
                <th style="width:10%;">ProblemId</th>
   