#include <iostream>
#include <fstream>
#include <string>

using namespace std;

int main()
{
    string filename;
    cout << "Enter the name of the file: ";
    cin >> filename;

    ifstream file(filename);
    if (!file.is_open()) {
        cerr << "Error: could not open file " << filename << endl;
        return 1;
    }

    string line;
    while (getline(file, line)) {
        string sentence = "";
        for (int i = line.length() - 1; i >= 0; i--) {
            if (line[i] == ' ' || i == 0) {
                if (i == 0) {
                    sentence = line[i] + sentence;
                }
                for (int j = 0; j < sentence.length(); j++) {
                    cout << sentence[j];
                }
                cout << endl;
                sentence = "";
            }
            else {
                sentence = line[i] + sentence;
            }
        }
        cout << endl;
    }

    file.close();

    return 0;
}