What will be the output of the follow C code？ #define product（x) （x*x) main（) { in

What will be the output of the follow C code？

#define product(x) (x*x)

main()

{

int i = 3, j, k;

j = product(i++);

k = product(i);

printf("%d %d",j,k);

}

请帮忙给出正确答案和分析，谢谢！