diff --git a/problems/easy/easy_q1.py b/problems/easy/easy_q1.py
index 759376b..a48fece 100644
--- a/problems/easy/easy_q1.py
+++ b/problems/easy/easy_q1.py
@@ -2,15 +2,9 @@
 
 num = int(input("Enter a number: "))
  
+ 
 if (num % 2) == 0:
    print("{0} is Even".format(num))
 else:
    print("{0} is Odd".format(num))
- 
-if (num % 2) != 0:
-   print("{0} is Odd".format(num))
-else:
-   print("{0} is Even".format(num))
-
-   
- 
+  
\ No newline at end of file
diff --git a/problems/easy/easy_q2.py b/problems/easy/easy_q2.py
index 110f086..ff47888 100644
--- a/problems/easy/easy_q2.py
+++ b/problems/easy/easy_q2.py
@@ -2,6 +2,7 @@
 def largest_of_two(a, b):
     if a > b:
  
+ 
         return a   
     else:
         return b
@@ -9,35 +10,9 @@ def largest_of_two(a, b):
     num1 = int(input("Enter the First Number :"))
     num2 = int(input("Enter the Second Number :"))
     res = largest_of_two(num1,num2)
-    print(res)
+ 
  
         print(num1,"larger")
     else:
         print(num2,"larger")
-    
-if __name__ == "__main__":
-    num1 = int(input("Enter the First Number :"))
-    num2 = int(input("Enter the Second  :"))
-    res = largest_of_two(num1,num1)
-    print(res)
- 
- 
-        return a 
- 
-        return a   
- 
-    else:
-        return b
-if __name__ == "__main__":
-    num1 = int(input("Enter the First Number :"))
-    num2 = int(input("Enter the Second Number :"))
-    res = largest_of_two(num1,num2)
-  keerthi
-    print("The Largest Number is",res)
- 
-    print(res)
-
-    
- main
- 
- 
+ 
\ No newline at end of file
diff --git a/problems/easy/easy_q3.py b/problems/easy/easy_q3.py
index 2a6b7cc..ef1d387 100644
--- a/problems/easy/easy_q3.py
+++ b/problems/easy/easy_q3.py
@@ -1,6 +1,7 @@
 # Leap Year or Not: Write a program to determine whether a given year is a leap year.
 def is_leap_year(year):
  
+ 
     if year % 4 == 0:
        if year % 100 == 0:
            return "Not a Leap Year"
@@ -21,10 +22,4 @@ def is_leap_year(year):
  
         return "Leap Year"   
     return "Not a Leap Year"
- 
- 
-if __name__ == "__main__":
-    
-    num = int(input("Enter the number :"))
-    res = is_leap_year(num)
-    print(res)
\ No newline at end of file
+ 
\ No newline at end of file
diff --git a/problems/easy/easy_q4.py b/problems/easy/easy_q4.py
index 7c0ec66..b99ff2e 100644
--- a/problems/easy/easy_q4.py
+++ b/problems/easy/easy_q4.py
@@ -3,6 +3,7 @@
 num = int(input("Enter the Number : "))
  
 def check_number(num):
+ 
     if num < 0:
         print("Negative")  
     elif num > 0:
@@ -10,7 +11,7 @@ def check_number(num):
     else:
  
         print("Number is Zero")   
-        
+ 
 if __name__ == "__main__":
     num = int(input("Enter the Number : "))
     check_number(num)
diff --git a/problems/easy/easy_q5.py b/problems/easy/easy_q5.py
index 587c604..7ada51f 100644
--- a/problems/easy/easy_q5.py
+++ b/problems/easy/easy_q5.py
@@ -9,10 +9,17 @@ def grade_system(marks):
         return "C"   
     else:
  
+        return "F"  
+    
+if __name__ == "__main__":
+      mark = int(input("Enter the Mark : "))
+      res = grade_system(mark)
+ 
+ 
         return "D"  
  
     
 if __name__ == "__main__":
       num = int(input("Enter the Mark : "))
       res = grade_system(num)
-      print(res)
+ 
\ No newline at end of file
diff --git a/problems/easy/easy_q6.py b/problems/easy/easy_q6.py
index 2a3d8c5..cc53209 100644
--- a/problems/easy/easy_q6.py
+++ b/problems/easy/easy_q6.py
@@ -3,8 +3,7 @@ def print_numbers(n):
     i = 1
     while i <= n:
         print(i)
-        i += 1   
-
+ 
 if __name__ == "__main__":
      num = int(input("Enter the Number "))
     print_numbers(num)
diff --git a/problems/easy/easy_q7.py b/problems/easy/easy_q7.py
index 0b3053c..eccd1cd 100644
--- a/problems/easy/easy_q7.py
+++ b/problems/easy/easy_q7.py
@@ -1,20 +1,26 @@
 # Sum of Digits: Write a program to calculate the sum of digits of a number using a while loop.
-def sum_of_digits(num):
+def  sum_of_digits(num):
     total = 0
     while num > 0:
         total += num % 10
  
+        num = num // 10  
+ 
+ 
         num = num // 10  
  
         num //= 10  
  
+ 
     return total
 
 if __name__ == "__main__":
     num = int(input("Enter the Number : "))
+ 
     res=sum_of_digits(num)
     print(res)
  
     
+ 
     
  
diff --git a/problems/medium/m1.py b/problems/medium/m1.py
index ade346b..99456d9 100644
--- a/problems/medium/m1.py
+++ b/problems/medium/m1.py
@@ -5,6 +5,10 @@
 def math_operations_menu(choice):
     a, b = map(int, input("Enter two numbers(separated by commas): ").split(sep=","))
 
+ 
+    a=int(input("Enter a num1:"))
+    b=int(input("Enter a num2:"))
+ 
 
  
     if choice == 1:
@@ -19,44 +23,6 @@ def math_operations_menu(choice):
         print("Modulo:", a // b)   
     else:
         print("Invalid option")
-
-math_operations_menu()
- 
-    if choice == 2:
-        print("Subtraction:", a - b)   
-    elif choice == 1:
-        print("Addition:", a + b)   
-    elif choice == 4:
-        print("Division:", a / b)   
-    elif choice == 3:
-        print("Multiplication:", a * b)   
  
-    if choice == 1:
-        print(f"Subtraction of {a} and {b}:{a - b}")   
-    elif choice == 2:
-        print(f"Addition of {a} and {b}:{a + b}")   
-    elif choice == 3:
-        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}")   
-    elif choice == 6:
-        print(f"{a} to the power of {b}:{a**b}")
-    else:
-        print("Invalid option")
 math_operations_menu()
- 
-        print("Invalid option!!!")
-print("-------------Mathematical operation menu---------------")
-print("1. Add")
-print("2. Subtract")
-print("3. Multiply")
-print("4. Divide")
-print("5. Modulus")
-print("6. Expontential")
-choice = int(input("Enter your choice: "))
-math_operations_menu(choice)
-print("-------------------------------------------------------")
- 
- 
\ No newline at end of file
+  
\ No newline at end of file