#include <iostream>
#include <string>
using namespace std;
int main()
{
	string s;
	cout << "Введите текст" << endl;
	getline(cin, s);
	s.insert(s.end(), ' ');
	int k = -1, i = 0, j = 0, sum = 0;
	do
	{
		k = s.find(" ", k + 1);
		if (k != -1)
		{
			j = k - i;
			if (j == 5) {
				sum += 1;
				for (i; i < k; i++)
					cout << s[i];
				cout << " ";
			}
		}
		= k + 1;
	} while (k != -1);
	if (sum == 0)
		cout << "таких нет" << endl;