Hello i need solution in detail for 2 question:

1.The alphabet to be coded consists of symbols: {a1, a2, a3, a4, a5, a6}. The code used must be the code of Huffman. Symbols have these probabilities: P (a1) = 1/4, P(a2) = 0.35, P (a3) = 3/10, P (a4) = 0.07, P (a5) = 0.03. Caution (: If the combined and non-combined symbols have the same probability, the combined symbols go under uncombined symbols in the table, and the beam that is shared with the greater probability is 0, while being less probable is 1). After encoding with Huffman's method, the symbols will consist of encrypted words:

a1________ a2___________ a3________ a4___________ a5________

2.The alphabet that is used for coding consists of symbols {a1, a2, a3, a4}. It is necessary to encode the a2a1a1a1a3a4 message using the arithmetic encoding. Possible interval of this message is:

But please i need solution in detail because i want to teaching it how to do it.But i need solution in a paper not in matlab or any programming language.Thanks