setInterval(function() {
    totalElements = document.getElementsByClassName('mobile-item').length;

    // Generate random indices for first and second elements
    firstElement = Math.floor(Math.random() * totalElements);
    secondElement = Math.floor(Math.random() * totalElements);

    // Click the random elements
    document.getElementsByClassName('mobile-item')[firstElement].getElementsByClassName('item')[0].click();
    document.getElementsByClassName('mobile-item')[secondElement].getElementsByClassName('item')[0].click();

}, 400);