#include <iostream>
using namespace std;

int Problem2(void);

int main() 
{
	 int sum2 = Problem2();
        cout << "sum2 is: " << sum2 << endl;
}

int Problem2 (void)
{
        int sum = 0;
        int isEvenPrev = 0;
        int isEvenCurr = 2;

        for (int i=3 ; i<20; i++)
        {
                // determine if i is even
                if (i%2 == 0)
                {
                        isEvenPrev = isEvenCurr;
                        isEvenCurr = i;
                        sum += (isEvenPrev + isEvenCurr);
                        cout << "isEvenPrev: " << isEvenPrev << cout << " isEvenCurr: " << isEvenCurr << " sum: "<< sum << endl;
                }
        }

        return sum;
}