#include <stdio.h>


int main(int argc, char **argv) {
  char str1[] = "hello world";
  char str2[] = "hello world";

  char *str3 = "hello world";
  char *str4 = "hello world";

  if(str1==str2)
    printf("str1 and str2 are the same.\n");
  else
    printf("str1 and str2 are not the same.\n");

  if(str3==str4)
    printf("str3 and str4 are the same.\n");
  else
    printf("str3 and str4 are not the same.\n");

  return 0;
}