Why can't i use words for a variable for example...

Question

Im trying to solve the code coach called security but im confused...

num = T$xxxxxxxG

If
num == T$xxxxxxxG
puts ("ALARM")
else
puts("quiet")

Answer 1

JOY Cabdi Raxmaan Khaliif Tahliil

Answer 2

Christopher Edwards
Variable contains letter, number and underscores only , and does not start with number !
Your variable num=T$xxxxxxxG contains special symbol "quot; which does not accepted !