diff --git a/lesson_2/coordinatey.py b/lesson_2/coordinatey.py
new file mode 100644
index 0000000..e611e9e
--- /dev/null
+++ b/lesson_2/coordinatey.py
@@ -0,0 +1,10 @@
+import sympy as sp
+x, y = sp.symbols('x y')
+equation = 'y = -12x + 11111140.2121'
+#семпай не понимает данную строку, ее нужно серьезно модифицировать
+#программа решает любое уравнение вида y = ax + b где a,b - числа 
+equation = equation.replace('y = ','')
+equation = equation.replace('x','*x')
+expr = sp.sympify(equation)
+y = expr.subs(x,2.5)
+print('y =',y)
diff --git a/lesson_2/date_correct_test.py b/lesson_2/date_correct_test.py
new file mode 100644
index 0000000..012ff9c
--- /dev/null
+++ b/lesson_2/date_correct_test.py
@@ -0,0 +1,20 @@
+#февраль легко проверить!
+import calendar
+dat = input('Введите дату: ')
+dat = dat.split('.')
+r1 = dat[0]
+r2 = dat[1]
+r3 = dat[2]
+k = len(r1) == 2 and len(r2) == 2 and len(r3) == 4
+r1 = int(r1)
+r2 = int(r2)
+r3 = int(r3)
+if k and (0 < r2 < 13) and (0 < r3 < 9999 ) :
+    days = list(calendar.monthrange(r3,r2))
+    days = days[1]
+    if 0 < r1 <= days :
+        print('Дата введена корректно')
+    else :
+        print('Дата введена некорректно')
+else:
+    print('Дата введена некорректно')
diff --git a/lesson_2/date_in_russian.py b/lesson_2/date_in_russian.py
new file mode 100644
index 0000000..1a17888
--- /dev/null
+++ b/lesson_2/date_in_russian.py
@@ -0,0 +1,10 @@
+import datetime
+import pytils
+str = input('Введите дату в виде dd.mm.yyyy: ')
+str = str.split('.')
+str = [int(k) for k in str]
+n1 = str[2]
+n2 = str[1]
+n3 = str[0]
+dataru = pytils.dt.ru_strftime(u"%d %B %Y", inflected=True, date=datetime.date(n1,n2,n3))
+print(dataru)
diff --git a/lesson_2/divide_or_multiply.py b/lesson_2/divide_or_multiply.py
new file mode 100644
index 0000000..3a45813
--- /dev/null
+++ b/lesson_2/divide_or_multiply.py
@@ -0,0 +1,11 @@
+1 = input('Введите элементы списка через пробел: ')
+l1 = l1.split()
+l1 = [int(k) for k in l1]
+l2 = []
+for k in l1:
+    if k % 2 == 0:
+        el = k/4
+    else:
+        el = k*2
+    l2.append(el)
+print(l2)
diff --git a/lesson_2/format_list.py b/lesson_2/format_list.py
new file mode 100644
index 0000000..ec18b29
--- /dev/null
+++ b/lesson_2/format_list.py
@@ -0,0 +1,5 @@
+lst = ["яблоко", "банан", "киви", "арбуз"]
+r = 0
+for k in lst:
+    r += 1
+    print( r,'.{:>8}'.format(k),sep='')
\ No newline at end of file
diff --git a/lesson_2/list_no_repeats.py b/lesson_2/list_no_repeats.py
new file mode 100644
index 0000000..a05ef40
--- /dev/null
+++ b/lesson_2/list_no_repeats.py
@@ -0,0 +1,5 @@
+l1 = input('Введите элементы списка через пробел: ')
+l1 = l1.split()
+l1 = [int(k) for k in l1]
+l2 = list(set(l1))
+print(l2)
diff --git a/lesson_2/list_total_delete_repeats.py b/lesson_2/list_total_delete_repeats.py
new file mode 100644
index 0000000..6a26bf3
--- /dev/null
+++ b/lesson_2/list_total_delete_repeats.py
@@ -0,0 +1,21 @@
+l1 = input('Введите элементы списка через пробел: ')
+l1 = l1.split()
+l1 = [int(k) for k in l1]
+
+for r in l1:
+    if l1.count(r) > 1:
+        while r in l1 :
+            l1.remove(r)
+print(l1)
+
+#альтернативный более длинный код...
+'''
+li = list(l1)
+for p in list(set(l1)):
+    li.remove(p)
+li = list(set(li))
+for in li:
+    while t in l1:
+        l1.remove(t)
+print(l1)
+'''
diff --git a/lesson_2/random_list.py b/lesson_2/random_list.py
new file mode 100644
index 0000000..0e55255
--- /dev/null
+++ b/lesson_2/random_list.py
@@ -0,0 +1,4 @@
+import random 
+n = input('Требуемая длина списка: ')
+ls = [random.randint(-100,100)+k*0 for k in range(n)]
+print(ls)
diff --git a/lesson_2/remove_the_same_in_another_list.py b/lesson_2/remove_the_same_in_another_list.py
new file mode 100644
index 0000000..b615b20
--- /dev/null
+++ b/lesson_2/remove_the_same_in_another_list.py
@@ -0,0 +1,26 @@
+l1 = input('Введите элементы первого списка через пробел: ')
+l1 = l1.split()
+l1 = [int(k) for k in l1]
+l2 = input('Введите элементы второго списка через пробел: ')
+l2 = l2.split()
+l2 = [int(k) for k in l2]
+
+'''
+a = []
+for n in l1 :
+    for k in l2:
+        if n == k:
+            a.append(n) 
+            
+for f in set(a) :
+    while f in l1 :
+        l1.remove(f)
+print(l1)
+'''
+l_1=set(l1)
+l_2=set(l2)
+l_1=l_1 & l_2
+for f in l_1 :
+    while f in l1 :
+        l1.remove(f)
+print(l1)
diff --git a/lesson_2/take_roots.py b/lesson_2/take_roots.py
new file mode 100644
index 0000000..ea3ce77
--- /dev/null
+++ b/lesson_2/take_roots.py
@@ -0,0 +1,11 @@
+import math as mt
+l1 = input('Введите элементы списка через пробел: ')
+l1 = l1.split()
+l1 = [int(k) for k in l1]
+l2 = []
+for k in l1 :
+    root = k**0.5
+    if type(root) != complex:
+        if root == mt.floor(root):
+            l2.append(int(root))
+print(l2)
diff --git a/lesson_2/vavylon.py b/lesson_2/vavylon.py
new file mode 100644
index 0000000..7fda911
--- /dev/null
+++ b/lesson_2/vavylon.py
@@ -0,0 +1,20 @@
+n = input('Введите номер комнаты: ')
+n = int(n)
+su = 0
+k = 0
+floor = 0
+while su < n :
+    k += 1
+    su += k**2
+    floor += k
+floor -= k
+su -= k**2
+n = n - su
+p = [n//k,n%k]
+if p[1] == 0 :
+    floor = floor + p[0]
+    num = k
+else :
+    floor = floor + p[0] + 1
+    num = p[1]
+print(floor,num)