Course and Reading Material

One Dimensional Lists and Strings in Python

Formating floating point: b=float("{0:.2f}".format(a))

Write a function changeString that has one parameter - string of chars. The function changes the original string in the following way: each lowercase letter is replaced by the character '*', all chars that are uppercase letters are omitted, and the rest of the chars remain the same. The function returns the new string.
Write a program that reads original string, make changes and prints string after changes are made. For example:
Input: Yana123*((!
Output: ***123*((!
Write the program that prints the input string in the following way: each character will be printed the amount of time that corresponds to the index value. The first character will be not printed at all. For example, if the input was
program
The output will be
roogggrrrraaaaammmmmm
Write a function funPrint(my_string) that will perform this strange printing and use this function in your program.
Write a function sumASCII(my_string) that finds the sum of the ASCII values of the elements of the string. Write a program that reads a string and finds the sum of the ASCII values of the elements using function sumASCII.

Option 1:
a = [[ 0 for i in range(COL)] for j in range(ROW)]