Author: Javier Gutiérrez Chamorro (Guti) - https://javiergutierrezchamorro.com
System: PC/DOS
Language used: Microsoft GW-Basic 3.23
Length of source code 392 bytes
Length of executable file: N/A
Instructions on how to run the code: Open GW-BASIC.EXE, type LOAD "c.bas" and then "RUN"
Description: It starts from the original sample code at https://logiker.com/Vintage-Computing-Christmas-Challenge-2021 and takes advantage on some shortcuts MS implemented in their BASIC such as "?" for "PRINT". Original source was 510 bytes, it is 392, not too bad by simply removing spaces.