In-Class-13.html

<h1>how's your day?</h1> 
<input type="number" id="braazzyyy" value="3">bro
<input type="number" id="ClOUt"value="5">click
<input type="number" id="TrACk" value="10000">here
<input type="button" value="RuNNiNg" onclick="ClIckhEre()">
<div id="GIBI"> </div>
<script> 
    function ClIckhEre() {
        var firstbox=document.getElementById("braazzyyy");
        var secondbox=document.getElementById("ClOUt");
        var thirdbox=document.getElementById("TrACk");
        var answertag=document.getElementById("GIBI");
        var Sum=0;
        for (let  counter= firstbox.valueAsNumber; counter < thirdbox.valueAsNumber;
         counter=counter+firstbox.valueAsNumber) {
            Sum=Sum+counter;
        }
        for (let  counter= secondbox.valueAsNumber; counter < thirdbox.valueAsNumber;
         counter=counter+secondbox.valueAsNumber) {
            Sum=Sum+counter;
        }
        answertag.innerHTML=Sum;
    }
</script>