diff --git a/1.py b/1.py
new file mode 100644
index 0000000..66a672e
--- /dev/null
+++ b/1.py
@@ -0,0 +1,33 @@
+class Date():
+    def __init__(self, inner_date):
+        print('innit metod is work')
+        self.date = inner_date
+
+    @classmethod
+    def func_class_extract(cls, date):
+        print('class metod is work')
+        return list(int(i) for i in date.split('-'))
+
+    @staticmethod
+    def func_validator(inner):
+        print('static metod is work')
+        if 0 < inner[0] < 31:
+            print(f'day  {inner[0]} ok')
+        else:
+            print(f'error day {inner[0]}')
+        if 0 < inner[1] < 13:
+            print(f'month {inner[1]} ok')
+        else:
+            print(f'error month {inner[0]}')
+        if 2000 < inner[2] < 2022:
+            print(f'year {inner[1]} ok and period 2000-2022')
+        else:
+            print(f'error year {inner[0]}')
+
+
+Date('12-10-2021')  # innit metod is work
+
+res = Date.func_class_extract('12-10-2021')  # class metod is work
+print(res)
+
+Date.func_validator(res)  # static metod is work
diff --git a/2.py b/2.py
new file mode 100644
index 0000000..9bb5b54
--- /dev/null
+++ b/2.py
@@ -0,0 +1,40 @@
+
+
+class ZeroDiv(ZeroDivisionError):
+    def __init__(self, *args):
+        if args:
+            self.message = args[0]
+        else:
+            self.message = None
+
+    def __str__(self):
+        print('calling str')
+        if self.message:
+            return f'my zero division {self.message}'
+        else:
+            return f'my zero division'
+
+# raise ZeroDiv
+
+# one_in = int(input('введите значение делимого '))
+def test_func():
+    one_value = 5
+    two_value = 0
+
+    try:
+        one = float(one_value)
+        two = float(two_value)
+        res = one/two
+    except ValueError:
+        print(f'некорректно введено значение')
+    except ZeroDivisionError as e:
+        print('перехват базового ZeroDivisionError')
+        raise ZeroDiv('test_zero_div')
+
+
+if __name__ == '__main__':
+    try:
+        test_func()
+    except ZeroDiv:
+        print('перехват моего ZeroDiv')
+        print('ok')
diff --git a/3.py b/3.py
new file mode 100644
index 0000000..3e36239
--- /dev/null
+++ b/3.py
@@ -0,0 +1,31 @@
+class My_exeption(ValueError):
+    def __init__(self, *argv):
+        self.message = argv[0]
+
+    def __str__(self):
+        return f'my error {self.message}'
+
+    def check_digit(self, li):
+        for num in li:
+            try:
+                print(f'{type(num)} num ')
+                z = float(num)
+            except ValueError:
+                raise My_exeption
+
+li = []
+while True:
+    in_value = input('введите значение для добавлени в список (q - для выхода) ')
+    if in_value == 'stop':
+        break
+    try:
+        try:
+            val = float(in_value)
+        except ValueError:
+            raise My_exeption('введено некорректное значение')
+    except My_exeption as e:
+        print(f'my extption {e}')
+    else:
+        li.append(val)
+
+print(f' result list {li}')
diff --git a/4_5_6.py b/4_5_6.py
new file mode 100644
index 0000000..3034410
--- /dev/null
+++ b/4_5_6.py
@@ -0,0 +1,120 @@
+from abc import abstractmethod
+
+
+class Store():
+    def __init__(self):
+        self.full_dict = {}
+
+    def get_unit(self, unit, name):
+        unit.set_id(name)
+        self.full_dict[name] = unit
+
+
+    def move_to_office(self, id):
+        get_unit = self.full_dict.get(id)
+        if get_unit:
+            res = self.full_dict.pop(id)
+            print(f'{res} move to office')
+            return res
+        else:
+            print(f'NOT in store {id}')
+            return None
+
+
+    def check_store(self):
+        print(f'all in store {len(self.full_dict)} units')
+        if len(self.full_dict):
+            print(f'this units is:')
+            for name, cls in self.full_dict.items():
+                print(name, cls)
+
+
+
+class Office_equipment():
+    @abstractmethod
+    def __init__(self, in_name, in_type):
+        self.name = in_name
+        self.type_is = in_type
+
+    def __str__(self):
+        return f'{self.name} {self.type_is}'
+
+    def to_print(self):
+        print('need define')
+
+    def get_name(self):
+        print(f'{self.name} - {self.type_is}')
+
+
+class Printer(Office_equipment):
+    def __init__(self, name, type_is):
+        super().__init__(name, type_is)
+
+    @abstractmethod
+    def to_do(self):
+        print(f'{self.name} print pages')
+
+    def __str__(self):
+        return f'{self.name} {self.type_is}'
+
+
+class Scaner(Office_equipment):
+    def __init__(self, name, type_is):
+        super().__init__(name, type_is)
+
+    def to_scan(self):
+        print(f'{self.name} scan to pages')
+
+
+class MFU(Scaner, Printer):
+    def __init__(self, name, type_is):
+        Scaner.__init__(self, name, type_is)
+        Printer.__init__(self, name, type_is)
+        # self.id = prop
+
+    def to_do(self):
+        Scaner.to_scan(self)
+        Printer.to_print(self)
+
+    def get_inheritance(self):
+        print(f'full inheritance clases:\n {MFU.__mro__}')
+
+    @classmethod
+    def get_info_class(cls):
+        print(cls)
+
+    @abstractmethod
+    def check_info_mfu(cls):
+        print(cls.__mro__)
+        print(cls.__module__)
+        print(cls.__dict__)
+
+    @property
+    def get_id(self):
+        print(f'{self.name} have id {self.id}')
+
+    def set_id(self, in_id):
+        self.id = in_id
+
+
+st = Store()  # создаем склад
+st.check_store()  # проверяем склад
+
+mfu = MFU('Xerox', 'R320')  # у нас есть  МФУ
+MFU.get_info_class()  # проверяем класс
+MFU.check_info_mfu(MFU)  # наследование, название модуля, информация о классе
+
+st.get_unit(mfu, '1555')  # добавляем мфу на склад присваивая id идентификационный номер
+st.check_store()
+
+mfu = st.move_to_office('1555')  # склад передает МФУ в офис
+
+mfu.to_do()  # тестируем МФУ это принтер и сканер одновременно
+mfu.get_name()
+mfu.to_scan()  # проверяем только сканирование
+mfu.get_inheritance()  # проверяем наследование
+print(mfu.get_id)  # проверяем id
+
+
+
+mfu = st.move_to_office('1555') # пытаемся получить со склада такой-же МФУ
diff --git a/7.py b/7.py
new file mode 100644
index 0000000..8d57de7
--- /dev/null
+++ b/7.py
@@ -0,0 +1,67 @@
+class Complex_digit():
+    def __init__(self, in_digit):
+        self.digit = in_digit
+
+    def check_negativ(self, digit):
+        return -int(digit) if digit.startswith('-') else int(digit)
+
+    def preparation(self, digit):
+        digit = digit.replace('i', '')
+        if digit.startswith('-'):
+            digit = digit[1:]
+            if '-' in digit:
+                a, b = digit.split('-')
+                return -int(a), -int(b)
+            else:
+                a, b = digit.split('+')
+                return -int(a), int(b)
+        else:
+            if '-' in digit:
+                a, b = digit.split('-')
+                return int(a), -int(b)
+            else:
+                a, b = digit.split('+')
+                return int(a), int(b)
+
+    def un_preparation(self, tup):
+        mark = '+' if tup[1] > 0 else ''
+        return f'{tup[0]}{mark}{tup[1]}i'
+
+    def __add__(self, two):
+        a, b = self.preparation(self.digit)
+        c, d = self.preparation(two.digit)
+
+        aa = a+c
+        bb = b+d
+
+        res = self.un_preparation((aa, bb))
+        print(res)
+        return Complex_digit(res)
+
+    def __mul__(self, two):
+        a, b = self.preparation(self.digit)
+        c, d = self.preparation(two.digit)
+
+        aa = a*c-b*d
+        bb = a*d+b*c
+
+        res = self.un_preparation((aa, bb))
+        print(res)
+        return Complex_digit(res)
+
+#
+a = Complex_digit('5-6i')
+b = Complex_digit('-3+2i')
+c = a + b
+# print(c)
+a = Complex_digit('1+3i')
+b = Complex_digit('4-2i')
+c = a * b
+# print(c)
+a = Complex_digit('3-2i')
+b = Complex_digit('4+1i')
+c = a * b
+print(c)
+
+
+import cmath  # для работы с комплексными числами