#include <stdio.h>

int main(void) {
	int a,b,*p,*q;
	
	p = &a;
	q = &b;
	a = 1;
	*q = 3;
	b = *q;
	
	printf("%d,%d,%d,%d\n",a,b,*p,*q);
	
	return 0;
}