#include<stdio.h>

void foo(int x, int *y, int &z){
	x = 100;
	*y = 200;
	z = 300;
}

int main(){
	int a = 3, b = 4, c = 5;
	printf("a = %d, b = %d, c = %d\n", a, b, c);
	foo(a, &b, c);
	printf("a = %d, b = %d, c = %d\n", a, b, c);
	return 0;
}