"
              min="0"
              class="form-control"
              id="inputsearch"
              placeholder="numbers (1/1642)"
              onkeypress="return event.charCode >= 
                       48 && event.charCode <= 57"/>
          </div>
  
          <button
            type="button"
            class="btn btn-outline-success col-lg-2"
            id="searchbtn">
            Search
          </button>
        </div>
        <div class="container mt-3">
          <button
