diff --git a/lesson_1/PhoneBook.txt b/lesson_1/PhoneBook.txt
new file mode 100644
index 0000000..f042824
--- /dev/null
+++ b/lesson_1/PhoneBook.txt
@@ -0,0 +1,20 @@
+Ilin Petr Artemovich 7 17 4559767
+Zaitsev Zakhar Artemovich 125 44 4164751
+Dubinin Aleksei Mikhailovich 7 473 7449054
+Solovev Artur Mikhailovich 4 940 2556793
+Gerasimov Miroslav Stanislavovich 7 367 7508887
+Makeev Marat 77 4521 8880876 999
+Solovev Ivan Vladimirovich 7 273 5699819 5543
+Egorov Savelii Stanislavovich 77 4521 8880876 99
+Sokolov Arsenii 93 163 1992257 16
+Davydov Filipp Grigorevich 7 247 1377660
+Morozov Vladimir Mikhailovich 37 2290 5613649
+Orekhov Matvei Petrovich 81 8281 7420182 2
+Titova Natalia 93 163 1992257 9
+Markelov Dmitrii Vadimovich 19 7576 5734416 2
+Kozlovskii Artem Daniilovich 81 8281 7420182 1
+Kuznetsov Kirill Kirillovich 7 17 8346563
+Mironova Margarita Aleksandrovna 7 273 5699819 5542
+Kotov Vasilii Eliseevich 7 367 7508888
+Ivanov Daniil Maksimovich 7 366 7508887
+Aleksandrov Georgii 493 7637 6114861
diff --git a/lesson_1/main.cpp b/lesson_1/main.cpp
new file mode 100644
index 0000000..2e3602f
--- /dev/null
+++ b/lesson_1/main.cpp
@@ -0,0 +1,151 @@
+/*
+ * main.cpp
+ *
+ *  Created on: 22 сент. 2021 г.
+ *      Author: alexander
+ */
+#include <iostream>
+#include <string>
+#include <optional>
+#include <tuple>
+#include <vector>
+#include <fstream>
+#include <sstream>
+#include <any>
+
+using namespace std;
+
+struct Person
+{
+    string firstname;
+    string lastname;
+    optional<string> patronymic = nullopt;
+};
+
+ostream& operator<<(ostream &out, const Person &p)
+{
+    out << p.firstname << ' ' << p.lastname << ' ' << p.patronymic.value_or("");
+
+    return out;
+}
+
+bool operator<(const Person &p1, const Person &p2)
+{
+    string patr1 = p1.patronymic.value_or("");
+    string patr2 = p2.patronymic.value_or("");
+
+    return tie(p1.firstname, p1.lastname, patr1)
+            < tie(p2.firstname, p2.lastname, patr2);
+}
+
+bool operator==(const Person &p1, const Person &p2)
+{
+    string patr1 = p1.patronymic.value_or("");
+    string patr2 = p2.patronymic.value_or("");
+
+    return tie(p1.firstname, p1.lastname, patr1)
+            == tie(p2.firstname, p2.lastname, patr2);
+}
+
+struct PhoneNumber
+{
+    int country_code;
+    int city_code;
+    string number;
+    optional<int> additional_number = nullopt;
+};
+
+ostream& operator<<(ostream &out, const PhoneNumber &p)
+{
+    out << '+' << p.country_code << '(' << p.city_code << ')' << p.number;
+
+    if (p.additional_number.has_value())
+    {
+        out << ' ' << p.additional_number.value();
+    }
+
+    return out;
+}
+
+using perPhone = vector<pair<Person, PhoneNumber>>;
+
+class PhoneBook
+{
+private:
+    perPhone m_data;
+public:
+    PhoneBook(ifstream &file)
+    {
+        if (!file)
+        {
+            cout << "Не удаётся открыть файл!" << endl;
+            exit(-1);
+        }
+
+        while (file)
+        {
+            string s;
+
+            getline(file, s, '\n');
+
+            stringstream str;
+            str << s;
+
+            pair<Person, PhoneNumber> entry;
+
+            for (int i = 0; str; ++i)
+            {
+                switch (i)
+                {
+                    case 0:
+                        str >> entry.first.firstname;
+                        break;
+                    case 1:
+                        str >> entry.first.lastname;
+                        break;
+                    case 2:
+                        str >> s;
+                        entry.first.patronymic = s;
+                        break;
+                    case 3:
+                        str >> entry.second.country_code;
+                        break;
+                    case 4:
+                        str >> entry.second.city_code;
+                        break;
+                    case 5:
+                        str >> entry.second.number;
+                        break;
+                    case 6:
+                        int num;
+                        str >> num;
+                        entry.second.additional_number = num;
+                        break;
+                }
+            }
+
+            m_data.push_back(entry);
+        }
+    }
+
+    friend ostream& operator<<(ostream &out, const PhoneBook &pb);
+};
+
+ostream& operator<<(ostream &out, const PhoneBook &pb)
+{
+    for (const auto& [first, second] : pb.m_data)
+    {
+        out << first << ' ' << second << endl;
+    }
+
+    return out;
+}
+
+int main()
+{
+    ifstream file("PhoneBook.txt");
+    PhoneBook book(file);
+    cout << book;
+
+    return 0;
+}