MVC write code C#

@{
var totalMessage = "";
if(IsPost)
    {
    var num1 = Request["text1"];
    var num2 = Request["text2"];
    var total = num1.AsInt() + num2.AsInt();
    totalMessage = "Total = " + total;
}
}

First Number:

Second Number:



@totalMessage


https://www.w3schools.com/asp/showfile_c.asp?filename=try_razor_cs_004