using System;
public class Program
{
public static void Main()
Console.WriteLine(String.Format("Total: {0}",SumEvenFib(10000)));
}
public static int SumEvenFib(int max)
int fib1 =2;
int fib2 =8;
int fib3 =0;
int total = fib1 + fib2;
while(fib3<max)
fib3 = fib2*4+fib1;
fib1 = fib2;
fib2 = fib3;
if(fib3 < max)
total += fib3;
Console.WriteLine(String.Format("{3} = {0} {1} {2}", fib1, fib2, fib3, total));
return total;