<HTML>
<HEAD>
<TITLE> </TITLE>
</HEAD>
<BODY>
<input />
<button>paste 2 symbols</button>
<script type = "text/JavaScript">
input=document.querySelector("input")
button=document.querySelector("button")
button.onclick=function(){
input.value="2 symbols"
}
</script>
</BODY>
</HTML>