def decrypt$\_$coded$\_$text$($coded$\_$text$)$:

bit$\_$strings $=$ coded$\_$text.split$()$

decrypted$\_$message $=""$

for bit$\_$string in bit$\_$strings:

shifted$\_$bits $=$ bit$\_$string$[-1]+$ bit$\_$string$[$:$-1]$

try:

decrypted$\_$ascii $=$ int$($shifted$\_$bits, $2)-1$

decrypted$\_$message $+=$ chr$($decrypted$\_$ascii$)$

except ValueError:

print$($f$"$Invalid bit string: $\{$bit$\_$string$\}")$

continue

return decrypted$\_$message

# Read from the file instead of the direct input

file$\_$name $=$ input$("$Enter the file name containing the coded text: $")$

try:

with open$($file$\_$name, $\text{'}$r$\text{'})$ as file:

coded$\_$text$\_$input $=$ file.read$()$

decrypted$\_$output $=$ decrypt$\_$coded$\_$text$($coded$\_$text$\_$input$)$

print$("$Decrypted Message:", decrypted$\_$output$)$

except FileNotFoundError:

print$($f$"$File $\text{'}\{$file$\_$name$\}\text{'}$ not found."$)$