This is seventh time I am asking this question.$*********$Note : Please don't import any library file. I am writinh my code in my institute's portal that don't have inport file provision. So please consider this while writing the code. First execute the code and then share. Also attach the screen shot of the code execution. $***************$

Write Python code to implement DES.Program should take user input and give output as per below test cases.

case$=1$

input$=0123456789$ABCDEF $($plaintext$)$

$133457799$BBCDFF$1($Key$)$

output$=85$E$813540$F$0$AB$405($ciphertext$)$

case$=2$

input$=4$e$45565251554954$

$4$b$41534849534142$

output$=763549$d$38$b$57$