PROGRAMMING:Simple maximum (2)

Find the largest even number of three integers.
###Input format:
Enter three integers a, B, C (in the range of int type).
There are multiple test data, processing to the end of input.
###Output format:
Each line has an even number, and the output content is the largest even number in a, B, C. If there is no even number, output 0.
###Input example:
Here is a set of inputs. For example:
```in
1 2 3
1 3 5
4 6 100
9 -4 1
9 5 0
```
###Output example:
The corresponding output is given here. For example:
```out
two
0
one hundred
-4
0
```







answer：If there is no answer, please comment