#include <stdio.h>
int main()
{
	int *ptr ;
	int x1 ;
	ptr = &x1 ;
	*ptr = 0 ;
	printf(" x1 = %d\n", x1) ;
	printf(" *ptr = %d\n", *ptr) ;
	*ptr += 5;
	printf(" x1  = %d\n", x1) ;
	printf(" *ptr = %d\n", *ptr) ;
	(*ptr)++ ;
	printf(" x1 = %d\n", x1) ;
	printf(" *ptr = %d\n", *ptr) ;
	return 0;

}