#include <iostream>   //C++ example
#include <fstream>
#include <cstdlib>
using namespace std;

int main(int argc, char **argv)
{
	//The constructors called in lines 10 and 16 open two input files.

	ifstream in1("infile1");
	if (!in1) {                   //if (in1.operator!()) {
		cerr << "can't open infile1.\n";
		return EXIT_FAILURE;
	}

	ifstream in2("infile2");
	if (!in2) {
		cerr << "can't open infile2.\n";
		return EXIT_FAILURE;
	}

	int i;                        //uninitialized variable
	in1 >> i;

	int j;                        //uninitialized variable
	in2 >> j;

	cout << i << " " << j << "\n";
	return EXIT_SUCCESS;
}