$($Decryption Program$)$ Write a program called decrypt.py that accepts the private$-$key n $($int$)$ and d $($int$)$ as command$-$line arguments and a message to decrypt $($produced by encrypt.py$)$ from standard input, decrypts each character $($represented as a fixed$-$width binary sequence$)$ in the message, and writes the decrypted character to standard output.

Accept private$-$key n $($int$)$ and d $($int$)$ as command$-$line arguments Get the number of bits per character $($call it width$)$ Accept message $($binary string generated by encrypt.py$)$ from standard input Assuming l is the length of message, for i in $[0,$l $1)$ and in increments of width$-$ Set s to substring of message from i to i $+$width $($exclusive$)-$ Set y to decimal representation of the binary string s$-$ Decrypt y$-$ Write the character corresponding to the decrypted value, obtained using the built$-$in function chr$()$