#include<stdlib.h>
#include<stdio.h>
#include<sys/types.h>
#include<sys/stat.h>
#include<unistd.h>
#include<string.h>

int main(int argc,char **argv){

   char a[40] = "abcdefghijk";
   char b[20] = "dd";
   printf(" %p \n",a);
   
   printf(" %p \n",strstr(a,b));
   
   return 0;
}