#include <stdio.h>

int main (void)
{
	int n = -10;
	char *a;

	printf("tamanyo int: %d; tamanyo char: %d\n", sizeof(int), sizeof(char));

	printf("n: %d\n", n);

	a = &n;
	printf("a: %c\n", *a);
	*a = 'a';

	printf("n: %d\n", n);
	printf("a: %c\n", *a);

	return 0;
}