feat: P-1.30 validation loop built

lab-3_4/P-1.30.py

@@ -2,3 +2,22 @@
 Write a Python program that can take a positive integer greater than 2 as input and write out the number of times
 one must repeatedly divide this number by 2 before getting a value less than 2.
 """
+
+def count_steps():
+    # input validation: try that input is an integer
+    while True:
+        try:
+            current_value = int(input('Please enter an integer greater than 2: '))
+            # also try that input is above 2, if not print error message
+            if current_value <= 2:
+                print('Invalid input: Please enter only integers greater than 2.')
+            # if input is correct, break the while loop    
+            else:
+                break
+        # Handle ValueError and print error message    
+        except ValueError:
+            print('Invalid input: Please only enter integers.')     
+               
+    
+
+count_steps()