$(20$ points$)$ Use the DES S$-$boxes $($from the Security in Computing textbook$)$ to encrypt the

following string:

$100001$

As is done in DES, use the first S$-$box to encrypt the first block, the second S$-$box to

e ncrypt the second block, and so on$.$ Write your answer as a $32-$bit string in eight $4-$bit

blocks.