#include <stdio.h>
 
int add(int x, int y);
 
int main(void){
	int a,b,*p,*q;
 
	p=&a;
	q=&b;
	a=1;
	*q=3;
 
 
	printf("%d,%d,%d,%d",a
,b
,*p
,*q
); }
 
 
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