diff --git a/Lesson20/pactice/part01/02_task_symbols.md b/Lesson20/pactice/part01/02_task_symbols.md
index 7df8017..257c067 100644
--- a/Lesson20/pactice/part01/02_task_symbols.md
+++ b/Lesson20/pactice/part01/02_task_symbols.md
@@ -34,5 +34,25 @@ side = 2
 ### Решение задачи
 
 ```python
-# TODO: you code here...
-```
\ No newline at end of file
+def print_rhombus_outline(side: int):
+    for i in range(side):
+        spaces_outside = side - 1 - i
+        if i == 0:
+            print(" " * spaces_outside + "+")
+        else:
+            spaces_inside = 2 * i - 1
+            print(" " * spaces_outside + "+" + " " * spaces_inside + "+")
+
+    for i in range(side - 2, -1, -1):
+        spaces_outside = side - 1 - i
+        if i == 0:
+            print(" " * spaces_outside + "+")
+        else:
+            spaces_inside = 2 * i - 1
+            print(" " * spaces_outside + "+" + " " * spaces_inside + "+")
+
+
+side = int(input("2 <= side <= 15: "))
+
+print_rhombus_outline(side)
+```