Answer
This is because without them no one would know how much each symbol represents, and no one would be able to decipher the message.
Explanation
Number system is a way to represent numbers. It is a writing system for expressing numbers; that is, a mathematical notation for representing numbers of a given set, using digits or other symbols in a consistent manner.
In computing or in a computer number systems are the techniques which represents numbers in the computer system architecture where every value that you are saving or getting into/from computer memory has a defined number system.Computer architecture supports . Binary number system,Octal number system and Decimal number system.
Explanation:
6* 49 because you multiply the number of dots in the first figure by 49
For numb in [5,8]:
for numa in [2,3]:
print(str(numb) + str(numa))