What is the output produced by the following lines of code?

```
int value1 = 3;
int value2 = 4;
int result = 0;
result = value1++ * value2--;
System.out.println("Post increment/decrement: " + result);
result = ++value1 * --value2;
System.out.println("Pre increment/decrement: " + result);
```

Post increment/decrement: 12
Pre increment/decrement: 10