my output not matched with your output in chapter 10 #5

this is my code

f = open("demofile.txt","r")

​print(f.read ())

output

C:\Users\My Name>python demo_file_open.py
Hello! Welcome to demofile.txt
This file is for testing purposes.
Good Luck!

f = open("demofile.txt","r")
print(f.read(50))

output

C:\Users\My Name>python demo_file_open.py
Hello!

f = open("demofile.txt", "r")

print(f.readline())
print(f.readline())

output

C:\Users\My Name>python demo_file_open.py

Hello! Welcome to demofile.txt

f = open("demofile.txt","r" )
for a in f:
print(a)

output

C:\Users\My Name>python demo_file_open.py
Hello! Welcome to demofile.txt
This file is for testing purposes.
Good Luck!

f = open("demofile.txt","r")
print(f.readline())
f.close()

output

C:\Users\My Name>python demo_file_open.py

f = open("demofile2.txt","a")
f.write("Now the file has more content!")
f.close()

f = open("demofile2.txt","r")
print(f.read())

output

Now the file has more contentNow the file has more content!

f = open("demofile3.txt","w")
f.write("i have deleted the content")
f.close()
​
​
f = open("demofile3.txt","r")
print(f.read())

output
i have deleted the content

f = open("demofile.txt","r")
print(f.read(5))

output

C:\Us