#include <Windows.h>
#include <iostream>
#include <string>
using namespace std;

bool done;

string Readpart(HANDLE h)
{
	char szSymbol;
	char szBuffer[128];
	int i = 0;
	DWORD dwCount;
	do
	{
		ReadFile(h, &szSymbol, 1, &dwCount, 0);
		if (dwCount == 0) //проверка на конец файла
		{
			done = true;
			break;
		}
		szBuffer[i] = szSymbol;
		i++;
	} while (szSymbol != ' ');
	szBuffer[i] = '\0';

	return string(szBuffer);
}

void main()
{
	setlocale(LC_ALL, "rus");
	string buff_1, buff_2;
	LPCTSTR filename = TEXT("test_1.txt");
	HANDLE h = CreateFile(filename, GENERIC_READ, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
	if (h != INVALID_HANDLE_VALUE)
	{
		while (true)
		{
			buff_1 = Readpart(h);
			if (done)
				break;
			buff_2 = Readpart(h);
			if (done)
			{
				cout << buff_1;
				break;
			}
			cout << buff_2 << " " << buff_1;
		}
	}
	CloseHandle(h);
	cout << endl;
	std::system("pause");
}