#include <stdio.h>

struct test {
	int age;
	int height;
};

void test_setage(struct test* s, int x) {
	s->age = x;
}

void test_setheight(struct test* s, int x) {
	s->height = x;
}

void test_print(struct test* s) {
	printf("(%d,%d)\n", s->age, s->height);
}

int main()
{
	struct test t;

	test_setage(&t, 20);
	test_setheight(&t, 170);

	test_print(&t);
}