#solution accepts file input to insert sentence composed of file content into text file on a new line
#solution outputs the text file contents including the new sentence
#accept input identifying filename
print("Enter the name of the input file:")
file_name = input()
#open, read, and write text file (e.g., "WordTextFile.txt") using open(), read(), write()
with open(file_name, 'r') as file:
    lines = file.read().splitlines() 

#combine the three words into one sentence 
sentence = " ".join(lines)

# open and append sentence to file
with open(file_name, 'a') as file:
    file.write("\n" + sentence) 

# open, read, and output updated file
with open(file_name, 'r') as file:
    updated_file = file.read()
    print(updated_file)