diff --git a/#1.py b/#1.py
new file mode 100644
index 0000000..7f445a8
--- /dev/null
+++ b/#1.py
@@ -0,0 +1,26 @@
+class Data:
+    data = ''
+
+    def __init__(self, date):
+        Data.data = date
+
+    @staticmethod
+    def numbers(date):
+        n = {}
+        for i, v in enumerate(date.split('.')):
+            n[i] = v
+        return f'день {n[0]} из 31, месяц {n[1]} из 12' if int(n[0]) < 31 and int(n[1]) < 13 else None
+
+    @classmethod
+    def ints(cls):
+        fn = {}
+        for m, k in enumerate(cls.data.split('.')):
+            fn[m] = k
+        return fn[0], fn[1], fn[2]
+
+    def my_method1(self):
+        return (Data.numbers(Data.data), Data.ints()) if Data.numbers(Data.data) else 'Дата введена неверно'
+
+
+d = Data('12.03.98')
+print(d.my_method1())
diff --git a/#2.py b/#2.py
new file mode 100644
index 0000000..08e95f4
--- /dev/null
+++ b/#2.py
@@ -0,0 +1,15 @@
+class ZeroDivision(Exception):
+    def __init__(self):
+        self.txt = 'На ноль делить нелязя!'
+
+
+a = int(input())
+b = int(input())
+try:
+    if b == 0:
+        raise ZeroDivision
+except ZeroDivision as err:
+    print(err)
+else:
+    print(a / b)
+
diff --git a/#3.py b/#3.py
new file mode 100644
index 0000000..5f2458c
--- /dev/null
+++ b/#3.py
@@ -0,0 +1,19 @@
+class OnlyNumber(Exception):
+    def __init__(self, txt):
+        self.txt = txt
+
+
+x = input()
+a = []
+while x != 'stop':
+    try:
+        if not x.isnumeric():
+            raise OnlyNumber('Необходимо ввести число!')
+        else:
+            a.append(int(x))
+    except OnlyNumber as err:
+        print(err)
+    x = input()
+print(a)
+
+
diff --git a/#4.py b/#4.py
new file mode 100644
index 0000000..f997115
--- /dev/null
+++ b/#4.py
@@ -0,0 +1,36 @@
+class Stock:
+    pass
+
+
+class Equipment(Stock):
+    all_equipment = 0
+
+
+class Printer(Equipment):
+    counter = 0
+
+    def __init__(self, id, price):
+        Equipment.all_equipment += 1
+        Printer.counter += 1
+        self.price = price
+        self.id = id
+
+
+class Scanner(Equipment):
+    counter = 0
+
+    def __init__(self, id, price):
+        Equipment.all_equipment += 1
+        Scanner.counter += 1
+        self.price = price
+        self.id = id
+
+
+class Xerox(Equipment):
+    counter = 0
+
+    def __init__(self, id, price):
+        Equipment.all_equipment += 1
+        Xerox.counter += 1
+        self.price = price
+        self.id = id
diff --git a/#5.py b/#5.py
new file mode 100644
index 0000000..fe50c12
--- /dev/null
+++ b/#5.py
@@ -0,0 +1,80 @@
+class Stock:
+    items = {'Printer': [0], 'Scanner': [0], 'Xerox': [0]}
+
+    @staticmethod
+    def count(type):
+        print(Stock.items[type][0])
+
+
+class Equipment(Stock):
+    all_equipment = 0
+
+
+class Printer(Equipment):
+    counter = 0
+
+    def __init__(self, name, price):
+        Equipment.all_equipment += 1
+        Printer.counter += 1
+        self.price = price
+        self.name = name
+        self.location = None
+
+    def stock(self):
+        Stock.items['Printer'].append({self.name: self.price})
+        Stock.items['Printer'][0] += 1
+        self.location = 'Stock'
+
+    def move(self, where):
+        self.location = where
+        Stock.items['Printer'].remove({self.name: self.price})
+        Stock.items['Printer'][0] -= 1
+
+
+class Scanner(Equipment):
+    counter = 0
+
+    def __init__(self, name, price):
+        Equipment.all_equipment += 1
+        Scanner.counter += 1
+        self.price = price
+        self.name = name
+        self.location = None
+
+    def stock(self):
+        Stock.items['Scanner'].append({self.name: self.price})
+        Stock.items['Scanner'][0] += 1
+        self.location = 'Stock'
+
+    def move(self, where):
+        self.location = where
+        Stock.items['Scanner'].remove({self.name: self.price})
+        Stock.items['Scanner'][0] -= 1
+
+
+class Xerox(Equipment):
+    counter = 0
+
+    def __init__(self, name, price):
+        Equipment.all_equipment += 1
+        Xerox.counter += 1
+        self.price = price
+        self.name = name
+        self.location = None
+
+    def stock(self):
+        Stock.items['Xerox'].append({self.name: self.price})
+        Stock.items['Xerox'][0] += 1
+        self.location = 'Stock'
+
+    def move(self, where):
+        self.location = where
+        Stock.items['Xerox'].remove({self.name: self.price})
+        Stock.items['Xerox'][0] -= 1
+
+
+Epson = Printer('Epson', 23423)
+Epson.stock()
+Stock.count('Printer')
+Epson.move('NPL-11')
+Stock.count('Printer')
\ No newline at end of file
diff --git a/#6.py b/#6.py
new file mode 100644
index 0000000..f6f6e1c
--- /dev/null
+++ b/#6.py
@@ -0,0 +1,109 @@
+class OnlyNumber(Exception):
+    def __init__(self, txt):
+        self.txt = txt
+
+
+class Stock:
+    items = {'Printer': [0], 'Scanner': [0], 'Xerox': [0]}
+
+    @staticmethod
+    def count(type):
+        print(Stock.items[type][0])
+
+
+class Equipment(Stock):
+    pass
+
+
+class Printer(Equipment):
+    def __init__(self, name, price, quantity=1):
+        self.price = price
+        self.name = name
+        self.quantity = quantity
+        self.location = None
+
+    def stock(self):
+        try:
+            if not isinstance(self.quantity, int):
+                raise OnlyNumber('Необходимо ввести число!')
+            else:
+                Stock.items['Printer'][0] += self.quantity
+                for i in range(self.quantity):
+                    Stock.items['Printer'].append({self.name: self.price})
+                self.location = 'Stock'
+        except OnlyNumber as err:
+            print(err)
+            self.quantity = int(input('Введите количество: '))
+            self.stock()
+
+    def move(self, where):
+        self.location = where
+        for i in range(self.quantity):
+            Stock.items['Printer'].remove({self.name: self.price})
+        Stock.items['Printer'][0] -= self.quantity
+
+
+class Scanner(Equipment):
+    def __init__(self, name, price, quantity=1):
+        self.price = price
+        self.name = name
+        self.quantity = quantity
+        self.location = None
+
+    def stock(self):
+        try:
+            if not isinstance(self.quantity, int):
+                raise OnlyNumber('Необходимо ввести число!')
+            else:
+                Stock.items['Scanner'][0] += self.quantity
+                for i in range(self.quantity):
+                    Stock.items['Scanner'].append({self.name: self.price})
+                self.location = 'Stock'
+        except OnlyNumber as err:
+            print(err)
+            self.quantity = int(input('Введите количество: '))
+            self.stock()
+
+    def move(self, where):
+        self.location = where
+        for i in range(self.quantity):
+            Stock.items['Scanner'].remove({self.name: self.price})
+        Stock.items['Scanner'][0] -= self.quantity
+
+
+class Xerox(Equipment):
+    counter = 0
+
+    def __init__(self, name, price, quantity=1):
+        self.price = price
+        self.name = name
+        self.location = None
+        self.quantity = quantity
+
+    def stock(self):
+        try:
+            if not isinstance(self.quantity, int):
+                raise OnlyNumber('Необходимо ввести число!')
+            else:
+                Stock.items['Xerox'][0] += self.quantity
+                for i in range(self.quantity):
+                    Stock.items['Xerox'].append({self.name: self.price})
+                self.location = 'Stock'
+        except OnlyNumber as err:
+            print(err)
+            self.quantity = int(input('Введите количество: '))
+            self.stock()
+
+    def move(self, where):
+        self.location = where
+        for i in range(self.quantity):
+            Stock.items['Xerox'].remove({self.name: self.price})
+        Stock.items['Xerox'][0] -= self.quantity
+
+
+Epson = Printer('Epson', 23142, '1')
+Epson.stock()
+Stock.count('Printer')
+print(Stock.items)
+Epson.move('12')
+print(Stock.items)
\ No newline at end of file
diff --git a/#7.py b/#7.py
new file mode 100644
index 0000000..1f0109c
--- /dev/null
+++ b/#7.py
@@ -0,0 +1,20 @@
+class ComplexNumber:
+    def __init__(self, real_part, imaginary_part):
+        self.real = real_part
+        self.imaginary = imaginary_part
+
+    def __str__(self):
+        return f'{self.real} + {self.imaginary}i' if  self.imaginary > 0 else f'{self.real} - {abs(self.imaginary)}i'
+
+    def __add__(self, other):
+        return ComplexNumber(self.real + other.real, self.imaginary + other.imaginary)
+
+    def __mul__(self, other):
+        return ComplexNumber(self.real * other.real - self.imaginary * other.imaginary, self.real * other.imaginary + self.imaginary * other.real)
+
+
+number = ComplexNumber(1, -2)
+number2 = ComplexNumber(3, 5)
+suma = number + number2
+multip = number * number2
+print(suma, multip)