items = ["T-shirt","Sweater"]
x = True
while x:
    request = input("welcome to our shop, what do you want (C,R,U,D)? :")
    request = request.upper()
    if request == "R":
        print("Our items:", end ="")
        print(*items, sep=",")
    elif request == "C":
        new_item = input("Enter new item:")
        items.append(new_item)
        print("Our items:", end ="")
        print(*items, sep=",")
    elif request == "U":
        update_position = int(input("Update position?"))
        new__item = input("New item?")
        items[update_position-1] = new__item
        print("Our items:", end ="")
        print(*items, sep=",")
    elif request == "D":
        delete_position = int(input("Delete position?"))
        del items[delete_position-1]
        print("Our items:", end ="")
        print(*items, sep=",")
    else:
        print("Unknown request")
        x = False
6b74332e3e30063406fa9ecfbf6a16022bf963d6
<mask token>

<mask token>
while x:
    request = input('welcome to our shop, what do you want (C,R,U,D)? :')
    request = request.upper()
    if request == 'R':
        print('Our items:', end='')
        print(*items, sep=',')
    elif request == 'C':
        new_item = input('Enter new item:')
        items.append(new_item)
        print('Our items:', end='')
        print(*items, sep=',')
    elif request == 'U':
        update_position = int(input('Update position?'))
        new__item = input('New item?')
        items[update_position - 1] = new__item
        print('Our items:', end='')
        print(*items, sep=',')
    elif request == 'D':
        delete_position = int(input('Delete position?'))
        del items[delete_position - 1]
        print('Our items:', end='')
        print(*items, sep=',')
    else:
        print('Unknown request')
        x = False

items = ['T-shirt', 'Sweater']
x = True
while x:
    request = input('welcome to our shop, what do you want (C,R,U,D)? :')
    request = request.upper()
    if request == 'R':
        print('Our items:', end='')
        print(*items, sep=',')
    elif request == 'C':
        new_item = input('Enter new item:')
        items.append(new_item)
        print('Our items:', end='')
        print(*items, sep=',')
    elif request == 'U':
        update_position = int(input('Update position?'))
        new__item = input('New item?')
        items[update_position - 1] = new__item
        print('Our items:', end='')
        print(*items, sep=',')
    elif request == 'D':
        delete_position = int(input('Delete position?'))
        del items[delete_position - 1]
        print('Our items:', end='')
        print(*items, sep=',')
    else:
        print('Unknown request')
        x = False

items = ["T-shirt","Sweater"]
x = True
while x:
    request = input("welcome to our shop, what do you want (C,R,U,D)? :")
    request = request.upper()
    if request == "R":
        print("Our items:", end ="")
        print(*items, sep=",")
    elif request == "C":
        new_item = input("Enter new item:")
        items.append(new_item)
        print("Our items:", end ="")
        print(*items, sep=",")
    elif request == "U":
        update_position = int(input("Update position?"))
        new__item = input("New item?")
        items[update_position-1] = new__item
        print("Our items:", end ="")
        print(*items, sep=",")
    elif request == "D":
        delete_position = int(input("Delete position?"))
        del items[delete_position-1]
        print("Our items:", end ="")
        print(*items, sep=",")
    else:
        print("Unknown request")
        x = False