#include <iostream>
#include <fstream>
using namespace std;
#define N 1000

void switch_words(char str[]) {
    std::ofstream output_f;
    output_f.open("rez_file.txt", std::ios::app);
    char line[N][N];
    char* pch = strtok(str, " ,.-");
    int i = 0;
    char* temp = new char[N];
    char rez_str[N];
    while (pch != NULL) {
        strcpy(line[i], pch);
        i++;
        pch = strtok(NULL, " ,.-");

    }
    strcpy(temp, line[0]);
    strcpy(line[0], line[1]);
    strcpy(line[1], temp);
    for (int j = 0; j < i; j++) {
        output_f << line[j] << " ";
    }
    output_f << endl;
    output_f.close();
}

int main() {
    setlocale(0, "RUS");
    char* str = new char[1024];
    int i = 0;
    ifstream base("input_file.txt");
    cout << "Текст из файла: " << endl;
    while (!base.eof())
    {
        base.getline(str, 1024, '\n');
        cout << str << '\n';
        switch_words(str);
        i++;
    }
    cout << "Данные записаны в rez_file.txt";
    base.close();

    return 0;
}