#include <stdio.h>
int main(void)
{
  int i = 2;
  printf("%d\n", ++i*(++i) );
  return 0;
}
/*
C:\work>gcc -Wall -o ppi ppi.c
ppi.c: In function `main':
ppi.c:5: warning: operation on `i' may be undefined

C:\work>ppi
16

C:\work>dmc ppi.c
link ppi,,,user32+kernel32/noi;


C:\work>ppi
12

*/