Explain how(-5,-4)

Question

Second line of the code

Answer 1

int a=-5;
int k=(a++,++a);
Printf("%d",k);

Answer 2

Help me wizards

Answer 3

The answer is -3

Answer 4

Thanks

Answer 5

The answer is -3.
a++ would leave it as -5, but while it gets to ++a it would turn into -4 and then it would turn into -3 because of ++a.