Write a program to implement a simple shopping cart system. In it user can add items, remove items, view the cart, and calculate the total cost.

cart = []
price = []
choice = 0

while choice != 5:
    print("1. Add item")
    print("2. Remove item")
    print("3. View cart")
    print("4. Calculate total cost")
    print("5. Exit")

    choice = int(input("Enter your choice: "))

    if choice == 1:
        item = input("Enter item name: ")
        cost = int(input("Enter item price: "))
        cart.append(item)
        price.append(cost)
        print("Item added to cart")

    elif choice == 2:
        item = input("Enter item name to remove: ")
        if item in cart:
            index = cart.index(item)
            cart.pop(index)
            price.pop(index)
            print("Item removed from cart")
        else:
            print("Item not found")

    elif choice == 3:
        print("Items in cart:")
        for i in range(len(cart)):
            print(cart[i], "-", price[i])

    elif choice == 4:
        total = 0
        for p in price:
            total = total + p
        print("Total cost:", total)

    elif choice == 5:
        print("Thank you for shopping")

    else:
        print("Invalid choice")

1. Add item
2. Remove item
3. View cart
4. Calculate total cost
5. Exit
Enter your choice: 1
Enter item name: Pen
Enter item price: 50
Item added to cart
1. Add item
2. Remove item
3. View cart
4. Calculate total cost
5. Exit
Enter your choice: 1
Enter item name: Book
Enter item price: 100
Item added to cart
1. Add item
2. Remove item
3. View cart
4. Calculate total cost
5. Exit
Enter your choice: 1
Enter item name: Pencil
Enter item price: 15
Item added to cart
1. Add item
2. Remove item
3. View cart
4. Calculate total cost
5. Exit
Enter your choice: 2
Enter item name to remove: Pen
Item removed from cart
1. Add item
2. Remove item
3. View cart
4. Calculate total cost
5. Exit
Enter your choice: 3
Items in cart:
Book - 100
Pencil - 15
1. Add item
2. Remove item
3. View cart
4. Calculate total cost
5. Exit
Enter your choice: 4
Total cost: 115
1. Add item
2. Remove item
3. View cart
4. Calculate total cost
5. Exit
Enter your choice: 5
Thank you for shopping