# -*- coding: utf-8 -*-
"""
Created on Wed Mar  9 11:26:00 2022

@author: 小田
"""


f = open('作业一素材.txt',encoding='utf-8')
txt = f.read()
f.close()

txtf = txt.rstrip('顺丰控股股份有限公司\nS.F. HOLDING CO., LTD.')
str = txtf.split()
print(len(str[-1]))