I want to add these number but it adds literally. What do I do to add the variables?

Question

https://code.sololearn.com/W5eIVwEpoBOe/?ref=app

Answer 1

//check this add Number before a & b
var a= prompt("heloo");
var b= prompt("pk");
var total = Number(a) + Number(b);
document.write (total);

Answer 2

Thanks Krishna, you're awesome!