a$,$a$,$a$,$a$,$a$,$b$,$b$,$b$,$b$,$b$,$b$,$b$,$b$,$c$,$c$,$d$,$d$,$d$,$d$,$e$,$e$,$e$,$e$,$e$,$e$\}$

a$)$ Calculate without compressing the data how many total bits the above characters have.

b$)$ After compressing data with Huffman$-$coding how many bits in total the above characters will have?