##############################################################################
# Python From Scratch
# Autor: Nilo Ney Coutinho Menezes
# Editora Novatec (c) 2010-2024
# Site: https://pythonfromscratch.com
#
# File: listing\chapter 08\08.1344 - No Title.py
# Description: No Title
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sum = 0.0
value = input("Type end to finish or a number to add:")
while value != "end":
    sum += float(value)
    value = input("Type end to finish or a number to add:")
print(f"The sum is: {sum}")