Piece of VBA code as mark of Macro for Excel

Hi,

I need to have a piece of VBA code written
There are two colums which will be made up of Stings
The columns are of a variable number of rows and likely each column will have a different number
Each column needs to be ordered
The code needs to compare the string in each column
If the string matches then the code needs to add the text "true" to the cell column C
If there is not a match then the code needs to check the boxes below (checking both variables from both columns A and B)
Where no match is found then insert the text "False) in column C
When a match is found, then insert empty cells so that the cells in columns A & B match
Repeat until all rows have been checked

I will provide a video example of doing it manually and sample data