$($a$)$ Explain the significance of "Sequence" in python. Further explain, why is Dictionary not

considered as a sequence?

$($b$)$ Explain binary left shif and binary right shift operators. Explain the same for number $29$ when

it is left shifted by $2$ and right shifted by $2.$

$($c$)$ Write the salient features of python programming language.

$($d$)$ What are negative indexes and why are they used?

$($e$)$ Differentiate between the following.

i$.$ re$.$search $()$ and re$.$match $()$

ii$.$ find $()$ and index $()$