A two-dimensional array has been defined to hold the quantity of each of five different healthy snack products sold in a shop during the past three months. The array is declared as follows:

sales = [ [0, 0, 0, 0, 0],
[0, 0, 0, 0, 0],
[0, 0, 0, 0, 0] ]

Indexing of the array starts at 0, so the sales of the first product in the second month is held in sales[1][0].

(a) Write a statement to assign the value 13 to the fifth product in the third month.

*write a program that defines symbolic names for several string literals (chars between quotes). * use each symbolic name in a variable definition. * use of symbolic to compose the assembly code instruction set can perform vara = (vara - varb) + (varc - vard); ensure that variable is in unsigned integer data type. * you should also further enhance your symbolic logic block to to perform expression by introducing addition substitution rule. vara = (vara+varb) - (varc+vard).