diff --git a/Ch2 - Basics/challange_start.py b/Ch2 - Basics/challange_start.py
new file mode 100644
index 0000000..86d8a18
--- /dev/null
+++ b/Ch2 - Basics/challange_start.py	
@@ -0,0 +1,32 @@
+
+text=""
+
+def polidromtest(text):
+    y=""
+   
+    for x in text:
+        if x.isalnum():
+            y=y+x
+    test=True
+    rev=y[::-1]
+    for i,b in enumerate(y):
+       
+        if rev[i]!=b:
+            print("Is palindrom:",False)
+            test=False
+            break
+            
+    if test:
+        print("Polindrom!")
+
+        
+    
+
+while text != "exit":
+    
+    text =input ("Enter palindrome or 'exit':")
+    text=text.lower()
+    if text=="exit":
+        break
+    else: 
+        polidromtest(text)
diff --git a/Ch2 - Basics/conditionals_start.py b/Ch2 - Basics/conditionals_start.py
index f6b58d6..e3648e6 100644
--- a/Ch2 - Basics/conditionals_start.py	
+++ b/Ch2 - Basics/conditionals_start.py	
@@ -6,14 +6,31 @@
 
 
 def main():
-    x, y = 10, 100
+    x, y = 100, 100
 
     # conditional flow uses if, elif, else
 
+    if x<y:   
+        result= "x less than y"
+    elif x==y:
+        result="x is y"
+    else:
+        result="x not less than y"
+
+
     # conditional statements let you use "a if C else b"
 
+    result="x is less than y" if x<y else "x is greater"
     # match-case makes it easy to compare multiple values
-    value = "one"
-
+    value = "five"
+    match value:
+        case "one":
+            result=1
+        case "three" | "four":
+            result=34
+        case _:
+            result=-1
+    
+    print(result) 
 if __name__ == "__main__":
     main()
diff --git a/Ch2 - Basics/functions_start.py b/Ch2 - Basics/functions_start.py
index 56cb247..72f4dbd 100644
--- a/Ch2 - Basics/functions_start.py	
+++ b/Ch2 - Basics/functions_start.py	
@@ -5,17 +5,39 @@
 
 
 # TODO: define a basic function
-
+def function():
+    print("Hello from function      ")
+    
+function()
 
 # TODO: function that takes arguments
+def function2(zahl,z2):
+    print(zahl+z2)
 
+function2(4,5)
 
 # TODO: function that returns a value
+def cube(x):
+    return x*x*x
 
+print(cube(3))
 
 # TODO: function with default value for an argument
+def power(num,x=1):
+    result=1
+    for i in range(x):
+        result=result*num
+    return result
 
-
+print(power(3))
 # TODO: function with variable number of arguments
 
+def multi_add(*args):
+    result=0
+    for x in args:
+        result+=x
+    return result
+
+
+print(multi_add(2,6,9,5))
 
diff --git a/Ch2 - Basics/helloworld_start.py b/Ch2 - Basics/helloworld_start.py
index 7d6b753..53a1842 100644
--- a/Ch2 - Basics/helloworld_start.py	
+++ b/Ch2 - Basics/helloworld_start.py	
@@ -3,4 +3,12 @@
 # LinkedIn Learning Python course by Joe Marini
 #
 
+def main():
+    print("Hello World")
+    name = input("Wie ist dein Name?")
 
+    print("Schön dich kennenzulernen,",name)
+  
+
+if __name__ == "__main__":    
+    main()
\ No newline at end of file
diff --git a/Ch2 - Basics/loops_start.py b/Ch2 - Basics/loops_start.py
index f7d2e75..29580d1 100644
--- a/Ch2 - Basics/loops_start.py	
+++ b/Ch2 - Basics/loops_start.py	
@@ -8,20 +8,30 @@ def main():
     x = 0
 
     # TODO: define a while loop
-
-
+    while(x<5):
+        print(x)
+        x+=1
     # TODO: define a for loop
-
+    for x in range(5,10):
+        print(x)
 
     # TODO: use a for loop over a collection
     days = ["Mon","Tue","Wed","Thu","Fri","Sat","Sun"]
-
+    for x in days:
+        print(x)
 
     # TODO: use the break and continue statements
-
-
-    # TODO: using the enumerate() function to get index 
+    for x in days:
+       
+        if x=="Sat":
+            continue
+        print(x)
     
+    # TODO: using the enumerate() function to get index 
+        days = ["Mon","Tue","Wed","Thu","Fri","Sat","Sun"]
+    for i,d in enumerate(days):
+        
+        print(i,d)
   
 if __name__ == "__main__":
     main()
diff --git a/Ch2 - Basics/variables_start.py b/Ch2 - Basics/variables_start.py
index b2756cc..eea0c4d 100644
--- a/Ch2 - Basics/variables_start.py	
+++ b/Ch2 - Basics/variables_start.py	
@@ -22,16 +22,28 @@
 print(mydict)
 
 # re-declaring a variable works
-
+myint = "abc"
+print(myint)
 # to access a member of a sequence type, use []
+print(mylist[3])
+print(mytuple[0])
 
 # use slices to get parts of a sequence
+print(mylist[0::2])
+print(mylist[1:3])
 
-# you can use slices to reverse a sequence
 
+# you can use slices to reverse a sequence
+print(mytuple[::-1])
 # dictionaries are accessed via keys
-
+print(mydict["two"])
 # ERROR: variables of different types cannot be combined
-
+print("String"+str(123))
 # Global vs. local variables in functions
+def function():
+    mystr = "functionwert"
+    print(mystr)
+
+function()
+print(mystr)
 
diff --git a/Ch3 - Files/files_start.py b/Ch3 - Files/files_start.py
index fb026bb..501240d 100644
--- a/Ch3 - Files/files_start.py	
+++ b/Ch3 - Files/files_start.py	
@@ -6,19 +6,25 @@
 
 def main():  
     # Open a file for writing and create it if it doesn't exist
-
-    
+    #myfile = open("Test.txt","w+")
+ 
     # Open the file for appending text to the end
-
+    myfile = open("Test.txt","a+")
 
     # write some lines of data to the file
-
+    for i in range(10):
+        myfile.write("Some new text\n")
     
     # close the file when done
-
+    myfile.close()
     
     # Open the file back up and read the contents
-
+    myfile=open("test.txt","r")
+    if myfile.mode =="r":
+    
+       rl= myfile.readlines()
+       for line in rl:
+           print(line)
     
 if __name__ == "__main__":
     main()
diff --git a/Test.txt b/Test.txt
new file mode 100644
index 0000000..8547e56
--- /dev/null
+++ b/Test.txt
@@ -0,0 +1,50 @@
+Some text
+Some text
+Some text
+Some text
+Some text
+Some text
+Some text
+Some text
+Some text
+Some text
+Some new text
+Some new text
+Some new text
+Some new text
+Some new text
+Some new text
+Some new text
+Some new text
+Some new text
+Some new text
+Some new text
+Some new text
+Some new text
+Some new text
+Some new text
+Some new text
+Some new text
+Some new text
+Some new text
+Some new text
+Some new text
+Some new text
+Some new text
+Some new text
+Some new text
+Some new text
+Some new text
+Some new text
+Some new text
+Some new text
+Some new text
+Some new text
+Some new text
+Some new text
+Some new text
+Some new text
+Some new text
+Some new text
+Some new text
+Some new text