I'm calculating the sum of numbers in a series but I only want the console to output the final sum but I don't know how

int a=Convert.ToInt32(Console.ReadLine());  

int b=Convert.ToInt32(Console.ReadLine());

int c = a / b;

int b2 = b;

    for(int i=0; i<=c; i++)
{
    b += (b2 * i);
    Console.WriteLine(b-b2);
}

this is basic code that asks for a base number, and a secondary number. only numbers divisible by the second number are added together. I only want to output the final number, but right now it outputs every step it takes and I’m to noob to know an easy solution.

>Solution :

Write the console.WriteLine() Outside the for loop to avoid printing it in every step.