$(20$ points$)$ What will be the output of the following code if the user enters:

a$)$ "hello"

b$)"$hi$"$

c$)"$CS $104$ is fun"

d$)$ "bye"

def mystery$($text$)$:

$y=0$

new$\_$text $=""$

for $i$ in range$($text$)$:

if $i==1$ :

$y+=1$

if $i8$ :

break

else:

new$\_$text $=$ new$\_$text $+$ str $(i)$

$y+=1$

print $($y$)$

return new$\_$text

text $=$ input $()$

if len$($text$)>4$:

output $=$ mystery text