diff --git a/Seminars/Seminar07/Self/Task01/Program.cs b/Seminars/Seminar07/Self/Task01/Program.cs
new file mode 100644
index 0000000..f28b651
--- /dev/null
+++ b/Seminars/Seminar07/Self/Task01/Program.cs
@@ -0,0 +1,17 @@
+using System;1
+class Program
+{
+    static void Triangle(int n) {
+        for (int i = 1; i <= n; ++i) {
+            for (int j = 1; j <= i; ++j) {
+                System.Console.Write("*");
+            }
+            System.Console.WriteLine();
+        }
+    }
+    static void Main()  
+    {
+        int n = int.Parse(Console.ReadLine());
+        Triangle(n);
+    }
+}
diff --git a/Seminars/Seminar07/Self/Task02/Program.cs b/Seminars/Seminar07/Self/Task02/Program.cs
new file mode 100644
index 0000000..618a95a
--- /dev/null
+++ b/Seminars/Seminar07/Self/Task02/Program.cs
@@ -0,0 +1,22 @@
+using System;
+class Program
+{
+    static void Triangle(int n) {
+        for (int i = 1; i <= n; ++i) {
+            for (int j = 1; j <= i; ++j) {
+                System.Console.Write("*");
+            }
+            System.Console.WriteLine();
+        }
+    }
+    static void Ornament(int n, int m) {
+        for (int i = 1; i <= m; ++i) {
+            Triangle(n);
+        }
+    }
+    static void Main()  
+    {
+        int n = int.Parse(Console.ReadLine()), m = int.Parse(Console.ReadLine());
+        Ornament(n, m);
+    }
+}
diff --git a/Seminars/Seminar07/Self/Task03/Program.cs b/Seminars/Seminar07/Self/Task03/Program.cs
new file mode 100644
index 0000000..deee076
--- /dev/null
+++ b/Seminars/Seminar07/Self/Task03/Program.cs
@@ -0,0 +1,22 @@
+using System;
+class Program
+{
+    static void Ornament(int n, int m) {
+        for (int i = 1; i <= n; ++i) {
+            for (int j = 1; j <= m; ++j) {
+                for (int k = 1; k <= i; ++k) {
+                    System.Console.Write('*');
+                }
+                for (int k = 1; k <= n - i; ++k) {
+                    System.Console.Write(' ');
+                }
+            }
+            System.Console.WriteLine();
+        }
+    }
+    static void Main()  
+    {
+        int n = int.Parse(Console.ReadLine()), m = int.Parse(Console.ReadLine());
+        Ornament(n, m);
+    }
+}
diff --git a/Seminars/Seminar07/Self/Task04/Program.cs b/Seminars/Seminar07/Self/Task04/Program.cs
new file mode 100644
index 0000000..c383b3c
--- /dev/null
+++ b/Seminars/Seminar07/Self/Task04/Program.cs
@@ -0,0 +1,25 @@
+using System;
+class Program
+{
+    static void Python(int n) {
+        for (int i = 1; i <= n; ++i) {
+            for (int j = 1; j <= n * 2; ++j) {
+                System.Console.Write('*');
+                Thread.Sleep(25);
+                if (i == 1 && j % 2 == 1 || i == n && j % 2 == 0 && j < 2 * n) {
+                    System.Console.Write('*');
+                }
+                else {
+                    System.Console.Write(' ');
+                }
+                Thread.Sleep(25);
+            }
+            System.Console.WriteLine();
+        }
+    }
+    static void Main()  
+    {
+        int n = int.Parse(Console.ReadLine());
+        Python(n);
+    }
+}
diff --git a/Seminars/Seminar07/Self/Task05/Program.cs b/Seminars/Seminar07/Self/Task05/Program.cs
new file mode 100644
index 0000000..6e620dc
--- /dev/null
+++ b/Seminars/Seminar07/Self/Task05/Program.cs
@@ -0,0 +1,22 @@
+using System;
+class Program
+{
+    static int gcd (int a, int b)
+    {
+        if (a == 0) {
+            return b;
+        }
+        else {
+            return gcd(b % a, a);
+        }
+    }
+    static void Main()  
+    {
+        System.Console.Write("Введите числитель: ");
+        int n = int.Parse(Console.ReadLine());
+        System.Console.Write("Введите знаменатель: ");
+        int m = int.Parse(Console.ReadLine());
+        System.Console.WriteLine($"Результат: {n / gcd(n, m)}/{m / gcd(n, m)}");
+        
+    }
+}
diff --git a/Seminars/Seminar07/Self/Task06/Program.cs b/Seminars/Seminar07/Self/Task06/Program.cs
new file mode 100644
index 0000000..33ece10
--- /dev/null
+++ b/Seminars/Seminar07/Self/Task06/Program.cs
@@ -0,0 +1,40 @@
+using System;
+class Program
+{
+    static int Stir1(int n, int k) {
+        if (n == 0 && k == 0) {
+            return 1;
+        }
+        if (n == 0 || k == 0) {
+            return 0;
+        }
+        if (true) {
+            return Stir1(n - 1, k - 1) - (n - 1) * Stir1(n - 1, k);
+        }
+        return Stir1(n - 1, k - 1) + (n - 1) * Stir1(n - 1, k);
+    }
+    static int Stir2(int n, int k) {
+        if (n == k) {
+            return 1;
+        }
+        if (k == 0 || n == 0) {
+            return 0;
+        }
+        return Stir2(n - 1, k - 1) + k * Stir2(n - 1, k);
+    }
+    static void Main()
+    {
+        System.Console.Write("Род (1/2) чисел стирлинга: ");
+        int rod = int.Parse(Console.ReadLine());
+        System.Console.Write("n = ");
+        int n = int.Parse(Console.ReadLine());
+        System.Console.Write("k = ");
+        int k = int.Parse(Console.ReadLine());
+        if (rod == 1) {
+            System.Console.WriteLine(Stir1(n, k));
+        }
+        else {
+            System.Console.WriteLine(Stir2(n, k));
+        }
+    }
+}