diff --git a/README.md b/README.md
index 8da7f2b..3c26242 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,5 @@
 # Seminars
+Assignment by: Lotte Felius, Kamiel Gulpen & Daan Moll
 Assignment for Seminars Lecture on Team-based Coding Projects
 
 Instructions:
diff --git a/assignment_1.py b/assignment_1.py
index 22b0d0b..ccb4dd8 100644
--- a/assignment_1.py
+++ b/assignment_1.py
@@ -16,7 +16,7 @@ def lower_case(string):
     """
 
     ### your code starts here
-
+    lower_string = string.lower()
     ### your code ends here
 
     return lower_string
@@ -38,7 +38,6 @@ def upper_case(string):
     """
 
     ### your code starts here
-
+    lower_string = string.upper()
     ### your code ends here
-
-    return lower_string
+    return upper_string
diff --git a/assignment_2a.py b/assignment_2a.py
index 6395db2..3a3c2aa 100644
--- a/assignment_2a.py
+++ b/assignment_2a.py
@@ -1,5 +1,6 @@
 from assignment_2b import function_2b
 from assignment_2c import function_2c
+
 """
 Used the imported functions (function_2b and function_2c) and the documentation
 provided by your teammates to generate the correct answers below. You can use
@@ -9,17 +10,17 @@
 just give a correct one.
 """
 
-var_1 = function_2b(...)
+var_2 = function_2b("Seminars", "Borrel")['C']
 
-var_2 = function_2c(...)
+var_1 = function_2c(1000, 100, 10, -50)['add']
 
-var_3 = str(function_2b(...)) + function_2c(...)
+var_3 = str(function_2c(5, 1000, 10, 10)['multiply']) + function_2b("cLs", "CLS")['L']
 
 if var_1 == 950:
     print("Good job!")
 
 if var_2 == "SeminarsBorrel":
     print("Well done!")
-
+    
 if var_3 == "10000cls":
     print("Excellent!")
diff --git a/assignment_2b.py b/assignment_2b.py
index 2a385c6..fb5c80d 100644
--- a/assignment_2b.py
+++ b/assignment_2b.py
@@ -5,7 +5,13 @@
 No cheating! Don't show or tell hem the code directly
 """
 def function_2b(string_1, string_2):
-
+    """
+    Takes as input 2 strings and gives as output a dictionary. The dictionary with
+    key "L" gives back the first string in lowercase, the dictionary with key "U"
+    gives back the second string in uppercase and the dictionary with key "C" 
+    gives a third output which is a combination of both strings
+    of both strings
+    """
     lower = string_1.lower()
     upper = string_2.upper()
     combined = string_1 + string_2
diff --git a/assignment_2c.py b/assignment_2c.py
index eaaa99a..8406aea 100644
--- a/assignment_2c.py
+++ b/assignment_2c.py
@@ -3,8 +3,29 @@
 implement the function, without knowing the code. Send your partner the
 documentation and see if he can work with it.
 No cheating! Don't show or tell hem the code directly
+
+The function_2c takes 4 parameters as input
+parameters:
+
+input(w, x, y, z)
+
+multiply: x * y
+division: x / y
+addition: w + z
+substraction: w - z
+
+outputs results in form of a dict with entries named after the
 """
 def function_2c(w, x, y, z):
+    """
+    The function_2c takes 4 parameters as input(w, x, y, z). The output is a dictionary.
+    This dictionary contains entries: multiply, divide, add, substract.
+
+    multiply: x * y \n
+    divide: x / y \n
+    add: w + z \n
+    substract: w - z \n
+    """
 
     multiplication = x * y
     division = x / y