How to read and write multiple file into one file in python

here is the code :

 file_names = []

 for i in range(1,201):
        file_names.append("D:\\alllllllllllll files\\" + str(i) + ".txt")
        #here alllllllllllll files is in a directory where all files are stored

        #and number i which is in range 1,200 is concatenating   with the file address
with open('output file location ', 'w') as outfile:
    for fname in file_names:
        with open(fname) as infile:
            for line in infile:
                outfile.write(line)
            outfile.write('\n')

Suppose you have many files stored in a directory and these files are numbered sequentially like in the below image ->

image of text files