Task $1.$ Please provide code.

Prepare the text in the text file. Write a Python program, which will display bigram $($char$)$ statistics in the loaded text and print occurrence statistics.

Prepare a sufficiently long text in the Croatian language in the text file.

Write a Python program, which will display the statistics of bigrams $($words$)$ in the loaded text and print the occurrence statistics.

Test on several texts $($in Croatian$)$ and compare the distribution results.

Prepare the text in the text file. Write a Python program, which will display n$-$gram $($char$)$ statistics in the loaded text and print occurrence statistics.

File name and n length of n$-$gram read as arguments.