#include <iostream>
using namespace std;
 
void function(int* & a){
	a = 0;
}
 
 
int main() {
	int* a;
	function(a);
 
	return 0;
}
				I2luY2x1ZGUgPGlvc3RyZWFtPgp1c2luZyBuYW1lc3BhY2Ugc3RkOwoKdm9pZCBmdW5jdGlvbihpbnQqICYgYSl7CglhID0gMDsKfQoKCmludCBtYWluKCkgewoJaW50KiBhOwoJZnVuY3Rpb24oYSk7CgkKCXJldHVybiAwOwp9