import java.io.*;
public class years
{
public static void main (String[] args) throws IOException
{
BufferedReader myInput = new BufferedReader (new InputStreamReader (System.in));
String userchoice;
int year;
int f = 0;
double cost, cost2;
double accumalatedValue, bookValue;
System.out.println (" What is the original cost of the item? ");
userchoice = myInput.readLine();
cost = Double.parseDouble (userchoice);
System.out.println (" What is the scrap/salvage value of the item? ");
userchoice = myInput.readLine();
cost2 = Double.parseDouble (userchoice);
System.out.println (" What is the approximate year durability? ");
userchoice = myInput.readLine();
year = Integer.parseInt (userchoice);
for (int i = year ; i >= 0 ; i--)
f = f+i;
accumalatedValue = cost - cost2 / f;
System.out.println ("Total year " + f);
System.out.println ("The total cost is:" + accumalatedValue);
}
}