'Added some notes;'

01_Python_C_C++_Java/ex1.md

@@ -8,4 +8,6 @@ Remark 2: Please, do not use external libraries.
 
 2. Using a graphical debugger is crucial in programming. Use graphical debugger to stop your program in the exact moment when the code finds out whether the given number is indeed prime or not.
 
-Remark 3: If it is really needed one can use arbitrary precision arithmetic libraries: https://en.wikipedia.org/wiki/List_of_arbitrary-precision_arithmetic_software for different programming languages
+Remark 3: If it is really needed one can use arbitrary precision arithmetic libraries: https://en.wikipedia.org/wiki/List_of_arbitrary-precision_arithmetic_software for different programming languages
+
+3. Finish this classes by writing the check for the third number using Miller–Rabin alorithm (or any other) to find out whether the number is prime or not.

Readme.md

@@ -1,6 +1,5 @@
-01_Python_C_C++_Java 	- 	tasks for the first classes
-
+01_Python_C_C++_Java 	- 	tasks for the first classes (procedural paradigm)
+02_OOP					-   tasks for the second classes (object oriented paradigm)
 _old 					- 	some old tasks from previous years, maybe we will 
 							use them later
-
 XX_comparison			- 	tasks for the one of our last classes