#include <iostream>
#include <cstdlib>
using namespace std;

struct str {
	int i;
	double d;
};

int main()
{
	str a[] = {
		{10, 15.0},
		{20, 25.0},
		{30, 35.0}
	};
	const size_t n = sizeof a / sizeof a[0];

	cout << (*(a + 2)).d << "\n";

	return EXIT_SUCCESS;
}