diff --git a/problems/medium/m1.py b/problems/medium/m1.py
index 64ce7f8..4e4a4a3 100644
--- a/problems/medium/m1.py
+++ b/problems/medium/m1.py
@@ -35,6 +35,9 @@ def math_operations_menu(choice):
     b=int(input("Enter second numbers: "))
 
     if choice == 1:
+ 
+        print(f"Addition of {a} and {b} : {a + b}")   
+ 
         print("Addition:", a + b)   
     elif choice == 2:
         print("Subtration:", a - b)   
@@ -61,16 +64,22 @@ def math_operations_menu(choice):
  
     if choice == 1:
         print(f"Subtraction of {a} and {b}:{a - b}")   
+ 
     elif choice == 2:
-        print(f"Addition of {a} and {b}:{a + b}")   
+        print(f"Subtraction of {a} and {b} : {a - b}")   
     elif choice == 3:
-        print(f"Division of {a} and {b}:{a / b}")   
+        print(f"Division of {a} and {b} : {a / b}")   
     elif choice == 4:
+ 
+        print(f"Multiplication of {a} and {b} : {a * b}")   
+    elif choice == 5:
+        print(f"Modulus of {a} and {b} : {a % b}")   
+ 
         print(f"Multiplication of {a} and {b}:{a * b}")   
      elif choice == 5:
         print(f"Modulus of {a} and {b}:{a // b}")   
-    elif choice == 6:
-        print(f"{a} to the power of {b}:{a**b}")
+     elif choice == 6:
+        print(f"{a} to the power of {b} : {a**b}")
     else:
         print("Invalid option")
 math_operations_menu()
@@ -78,6 +87,14 @@ def math_operations_menu(choice):
         print("Invalid option!!!")
 print("-------------Mathematical operation menu---------------")
  
+print("1. Subtract")
+print("2. Add")
+print("3. Multiply")
+print("4. Divide")
+print("5. Modulus")
+print("6. Exponential")
+=======
+ 
 print("1. Add")
 print("2. Subtract")
 print("3. Multiply")
@@ -96,6 +113,7 @@ def math_operations_menu(choice):
 print("-------------------------------------------------------")
  
 print("6. Expontential")
+ 
 choice = int(input("Enter your choice: "))
 math_operations_menu(choice)
 print("-------------------------------------------------------")
diff --git a/problems/medium/m10.py b/problems/medium/m10.py
index f70c55d..a8046f3 100644
--- a/problems/medium/m10.py
+++ b/problems/medium/m10.py
@@ -2,7 +2,7 @@
 
 def game_menu():
     while True:
-        print("\n1. Number Guessing Game")
+        print("1. Number Guessing Game")
         print("2. Rock-Paper-Scissors")
         print("3. Dice Roll Simulation")
         print("4. Exit")
@@ -32,6 +32,9 @@ def game_menu():
         else:
             print("Invalid Choice")
  
+game_menu()
+ 
+ 
 x=input("Can we play some games?? (type yes and no)")
 if x=="yes":
     game_menu()
@@ -40,4 +43,4 @@ def game_menu():
  
 
 game_menu()
- 
+  
\ No newline at end of file
diff --git a/problems/medium/m2.py b/problems/medium/m2.py
index 2b42991..e0f8021 100644
--- a/problems/medium/m2.py
+++ b/problems/medium/m2.py
@@ -3,8 +3,10 @@ def array_operations_menu():
     print("2. Largest Element")
     print("3. Smallest Element")
     print("4. Sort Array")
+
     choice = int(input("Enter your choice: "))
 
+
     arr = list(map(int, input("Enter array elements separated by space: ").split()))
 
     if choice == 1:
@@ -14,6 +16,13 @@ def array_operations_menu():
     elif choice == 3:
         print("Smallest Element:", min(arr))   
     elif choice == 4:
+ 
+        arr.sort()  # sorts the array in ascending order by default
+        print("Sorted Array:", arr) 
+    else:
+        print("Invalid option")
+array_operations_menu()
+ 
         arr.sort()
  
         print("Sorted Array:", arr) 
@@ -25,5 +34,4 @@ def array_operations_menu():
     else:
         print("Invalid option")
 array_operations_menu()
-       
- 
+   
\ No newline at end of file
diff --git a/problems/medium/m3.py b/problems/medium/m3.py
index 5d5d7b8..045664c 100644
--- a/problems/medium/m3.py
+++ b/problems/medium/m3.py
@@ -24,7 +24,12 @@ def string_manipulation_menu():
     elif choice == 4:
         old = input("Substring to replace: ")
         new = input("Replacement substring: ")
+ 
+        s = s.replace(old, new)  
+        print("Updated String:", s)   
+ 
         print("Updated String:", s.replace(old,new))   
+ 
     else:
         print("Invalid option")
 string_manipulation_menu()
\ No newline at end of file