function OnClientCommandExecuted(editor, commandName, oTool) {
    if (commandName == "Paste") {
        window.setTimeout(
            function() {
                var elems = editor.Document.getElementsByTagName("p"); //reference to p elements in the content area

                for (var i = 0; i < elems.length; i++) {
                    var elem = elems[i];
                    //write your code here to strip the non-desired attributes
                    elem.outerHTML = "<p>" + elem.innerHTML + "</p>";
                }

                var elems = editor.Document.getElementsByTagName("b"); //reference to b elements in the content area

                for (var i = 0; i < elems.length; i++) {
                    var elem = elems[i];
                    //write your code here to strip the non-desired attributes
                    elem.outerHTML = "<strong>" + elem.innerHTML + "</strong>";
                }
            }, 150);
    }
}