#include <stdio.h>

int main() {
	int a=2;
	int *p=&a; /* *p = 1, p = 1004 */
	printf("Line 1: %u %u\n",*p, p);
	*p++; 
	/* 
	p++ = 1004 (incrementing p: operation not completed at)
	*(p++) = increment'ing' p..! it's pointer, allotted with int 4bits again so *p = 1008 
	(==== it incrementing pointer not pointer pointing value. ====)
	*p = 1008
	*/
	printf("Line 3: %u %u\n",*p, p);
	++(*p); 
	/*
	*p = 1008, p = 1008 
	*p p's pointer
	p's incrementing p's pointer value, so p value (1008) added by 1.
	so p = (p + 1); p = 1008+1; p = 1009 and *p some come with some new location 3001
	*/
	printf("Line 4: %u %u\n",*p, p);
	--p;
	/*
	(p = p-1) no more old pointer address but direct value.
	p = 1009-4; p = 1005; and some new random p's address *p = 3420
	*/
	printf("Line 5: %u %u\n",*p, p);
	return 0;
}