print("hello python world")
message = "Hello Python world!" 
print(message) 
message='I told my friend, "Python is my favorite language!"'
print(message) 
message1="The language 'Python' is named after Monty Python, not the snake."
print(message1)
#title()以首字母大写的方式显示每个单词，即将每个单词的首字母都改为大写
#qy change this
name = "ada loVelace" 
print(name.title()) 

print(name.upper()) 
print(name.lower())

first_name = "ada" 
last_name = "lovelace" 
full_name = first_name + " " + last_name
print(full_name)

