confused about the result?

char str[]="hello people";
char *p=&str[0];
char *tem=&str[1];
printf("p=%p\n",p);
printf("*p=%c\n",*p);

hi,

I'm confused about "%p". I searched about it. it is about a address. Then I tested it with the code below.

       char str[]="hello people";
	char *p=&str[0];
	char *tem=&str[1];
	printf("p=%p\n",p);
	printf("*p=%c\n",*p);++*p++;
	printf("p=%p\n",p);
	printf("*p=%c\n",*p);
	puts(str);

I thought the result of puta(str) is "hfllo people". However, the result is "iello people". Why the result is "iello people" instead of "hfllo people"? Could anyone help me?