In this part of the assignment, you will write a program that, when given a positive integer $1n26,$ will print an $nn$ "chess" board as follows.

When the program is executed, it will ask the user to enter a positive integer, and it will store it into a variable: $n.$ This is done for you in the code we have provided at the top of the program $($between the two ### DO NOT MODIFY ### comments$).$ Below the # YOUR CODE HERE comment, you will write the code to create a list called board as follows:

board $$ contains the top row of the chess board

board $[1]$ contains the next row of the chess board

$...$

board$[$n$-1]$ contains the bottom row of the chess board

At the bottom of the program $($between the two ### DO NOT MODIFY ### comments$),$ we provide code to print board in order to display the contents of board to you $($in order to help you debug$).$ It first prints it in an easy$-$to$-$read grid structure, and it then prints the actual Python list.