Each new term in the Fibonacci sequence is generated by adding the previous two terms. By starting with 0 and 1, the first 12 terms will be:

0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, ...

By considering the terms in the Fibonacci sequence whose values do not exceed four million, find the sum of the even-valued terms.

```
In [5]:
```Fib = [0,1]
Fibsum = 0
while Fib[-1] <= 4000000:
Fib.append(Fib[-1]+Fib[-2])
for x in Fib:
if x%2 == 0:
Fibsum += x
print(Fibsum)

```
```

```
In [ ]:
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