Implement a spreadsheet where cells need to support string values like “Sunday” and “10”. Cell locations are identified by "A1" or "C3". You can assume at most 26 columns, namely A to Z, but no bounds exist for the number of rows. You can assume all input to the API will be valid.
Implement an API to:
A. Set a cell value. Accepts a string value and a cell location.
B. Get a cell value. Accepts a cell location. Returns a string value.