var imgNum = 0;
var rand = [2, 3, 4, 5, 6, 7, 8, 9];
var randNum;
var ind = [];

document.getElementById('img1').addEventListener('click', ()=>{
document.getElementById('img1').style = "border: 5px solid rgb(139, 139, 172)";
document.getElementById('img2').style = "border: none";

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/*!
* Bootstrap v4.6.0 (https://getbootstrap.com/)
* Copyright 2011-2021 The Bootstrap Authors (https://github.com/twbs/bootstrap/graphs/contributors)
* Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
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/*
Copyright (C) Federico Zivolo 2020
Distributed under the MIT License (license terms are at http://opensource.org/licenses/MIT).
*/(function(e,t){'object'==typeof exports&&'undefined'!=typeof module?module.exports=t():'function'==typeof define&&define.amd?define(t):e.Popper=t()})(this,function(){'use strict';function e(e){return e&&'[object Function]'==={}.toString.call(e)}function t(e,t){if(1!==e.nodeType)return[];var o=e.ownerDocument.defaultView,n=o.getComputedStyle(e,null);return t?n[t]:n}function