/**
 * Write a description of class SumOfInput here.
 *
 * @author (your name)
 * @version (a version number or a date)
 */
public class SumOfInput
{
    public int sumOfInput(int n)
    {
        int sum = 0;
        for (int i=n; i>=1; i--){
            sum += i;
        }
        return sum;
    }
}