#include <iostream>

using namespace std;

int main()
{
    // Define Year Vars.
    int StartYear, EndYear;
    // Define Inflation & Amount Vars.
    float TotalInflation, AverageYearlyInflation, StartAmount, EndAmount;

    // Prompt for and get Start (index) Year.
    cout << "Enter the starting year (Index Year): ";
    cin >> StartYear;

    //Prompt for and get Start (index) Amount.
    cout << "\nEnter the starting amount (Index Amount): ";
    cin >> StartAmount;

    //Prompt for and get Ending Year.
    cout << "\nEnter the ending year: ";
    cin >> EndYear;

    //Prompt for and get Ending Amount.
    cout << "\nEnter the ending amount: ";
    cin >> EndAmount;

    //Calculate Total Percentage Difference between End Amount and Start Amount.
    TotalInflation = EndAmount/StartAmount;
    //DEBUG: Prints out TotalInflation for Verification
    //cout << "\n\nTotal Inflation: " << (TotalInflation*10) << "%\n"; system("pause");

    //Calculate Average Inflation Amount per Year (TotalInflation/Difference of End & Start Years)
    AverageYearlyInflation = 1+(TotalInflation/(EndYear-StartYear));
    //DEBUG: Prints out AverageYearlyInflation for Verification, Pause After Displaying.
    //cout << "\nAverage Yearly Inflation: " << (AverageYearlyInflation*10) << "%\n"; system("pause");

    //Display Total Inflation, output in user-friendly readable %ile format.
    cout << "\nTotal Inflation: " << (TotalInflation*10) << "%\t\t";
    cout << "Average Rate of Inflation: " << (AverageYearlyInflation*10) << "% per year\n"; system("pause");

    //End main, return 0.
    return 0;
}