void write_file() {
    ofstream File("database.txt");
        for (int current_size = 0; current_size < max; current_size++) {
        File << list[current_size].number << " | " << list[current_size].B << " | " << list[current_size].day << " | " << list[current_size].hour_a << ":" << list[current_size].minute_a << " | ";
        File<< list[current_size].hour_b <<':'<< list[current_size].minute_b << " | "<<endl;
    }
    cout << "Запись завершена...";
    File.close();
    cout << "Что дальше?" << endl;
    main();
}
void read_file() {
    ifstream File("database.txt");
    string a;
    for (int i = 0; i < max; i++) {
        getline(File, a);
        cout << a<<endl;
    }
    cout << "Что дальше?" << endl;
    main();
}