mertvetsky

    document.addEventListener("DOMContentLoaded", function () { //optional
        if (!document.getElementById('hello_cat')) {
            var p = -15;
            var d = document.createElement('div');
            var c = document.createElement('img');
            c.src = 'data:image/gif;base64,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