diff --git a/calculator program using python.py b/calculator program using python.py
new file mode 100644
index 0000000..c827da6
--- /dev/null
+++ b/calculator program using python.py	
@@ -0,0 +1,48 @@
+# Program make a simple calculator
+
+# This function adds two numbers
+def add(x, y):
+    return x + y
+
+# This function subtracts two numbers
+def subtract(x, y):
+    return x - y
+
+# This function multiplies two numbers
+def multiply(x, y):
+    return x * y
+
+# This function divides two numbers
+def divide(x, y):
+    return x / y
+
+
+print("Select operation.")
+print("1.Add")
+print("2.Subtract")
+print("3.Multiply")
+print("4.Divide")
+
+while True:
+    # Take input from the user
+    choice = input("Enter choice(1/2/3/4): ")
+
+    # Check if choice is one of the four options
+    if choice in ('1', '2', '3', '4'):
+        num1 = float(input("Enter first number: "))
+        num2 = float(input("Enter second number: "))
+
+        if choice == '1':
+            print(num1, "+", num2, "=", add(num1, num2))
+
+        elif choice == '2':
+            print(num1, "-", num2, "=", subtract(num1, num2))
+
+        elif choice == '3':
+            print(num1, "*", num2, "=", multiply(num1, num2))
+
+        elif choice == '4':
+            print(num1, "/", num2, "=", divide(num1, num2))
+        break
+    else:
+        print("Invalid Input")
diff --git a/python program to swap 1st and last element of a list.py b/python program to swap 1st and last element of a list.py
new file mode 100644
index 0000000..68ae663
--- /dev/null
+++ b/python program to swap 1st and last element of a list.py	
@@ -0,0 +1,18 @@
+# Python3 program to swap first
+# and last element of a list
+ 
+# Swap function
+def swapList(newList):
+    size = len(newList)
+     
+    # Swapping
+    temp = newList[0]
+    newList[0] = newList[size - 1]
+    newList[size - 1] = temp
+     
+    return newList
+     
+# Driver code
+newList = [12, 35, 9, 56, 24]
+ 
+print(swapList(newList))