i need a clear answer of the cypher i shared please dont reply with some general answers it the 4 th time posting this question

with each step explained

You must write clear, meaningful, consistent. Show each step of your work to receive full credit. If you use a programming platform for a computation, write the set of commands that produced the result. Upload a SINGLE PDF file. It must be readable.. Decrypt your own ciphertext obtained from a Substitution Cipher. Note that there may be meaningless words at the beginning or at the end since the plaintext is divided into equal parts Decrypt the following ciphertext PTMNYJLCUPCCJAUBCXMAAJDPSGSYLJNMAMPTZGLCUMPQBUQMZGCDLPGSU PSZUNGKUZFUTUMPFGGYBJDLCGNYGLAUMSCXGZUCGLYMQQULMACXUCUQQA UMSUQMZGAEUQQJEMPTSJEPXGLUPTGLUAEGQQUAAXGZJDQSPJAUMSCXGZU CGLYMQQULUQMZGCXJDTXCAXGNMTXCUAEGQQEUMCUAAXGXUSPJCXMPTGQA GCJSJUPSYGLXUYAUWCGLUQQMCNMTXCCGQQXGLAJNGCXMPTEJLCXXGULMP TWJLAJNGNMPDCGAMCYDWWGSUEUBEMCXJDCAYGUFMPTKDCUCQUACMCDPWJ QSGSMCAULNACJJFCXGXJJFUXJDCJWMCANJDCXUTUMPUPSAUMSAJBJDCXM PFBJDLGZXUPTGSSJBJDMNUWLUMSMUNAMLAUMSUQMZGMZUPCLGNGNKGLCX MPTAUAMDAGSUPSMSJPCFGGYCXGAUNGAMIGWJLCGPNMPDCGACJTGCXGLZU PCLGNGNKGLEXUCCXMPTAAUMSCXGZUCGLYMQQULEGQQMHGCLMGSCJAUBXJ ESJCXCXGQMCCQGKDABKGGKDCMCUQQZUNGSMWWGLGPCUQMZGLGYQMGSMPU HGLBNGQUPZXJQBHJMZGL