please dont use AI to write the code. python code that creates a function that takes a string and a number and return nprint

$($

ngrams list

$($

$$

computer

$$

$,$

$$

$2$

$)$

$)$

$[$

$$

co

$$

$,$

$$

om

$$

$,$

$$

mp

$$

$,$

$$

pu

$$

$,$

$$

ut

$$

$,$

$$

te

$$

$,$

$$

er

$$

$]$

$-$

grams of the string as a list. sample is print

$($

ngrams list

$($

$$

computer

$$

$,$

$$

$2$

$)$

$)$

$[$

$$

co

$$

$,$

$$

om

$$

$,$

$$

mp

$$

$,$

$$

pu

$$

$,$

$$

ut

$$

$,$

$$

te

$$

$,$

$$

er

$$