Write a Python script that takes as input a column number from the
user and outputs "Conserved" if the column is conserved and
"Not conserved" otherwise. You don't have to use a dictionary to solve
this. Use whatever design you wish.

For example if the input in the file dna.txt is

>human
ACG
>mouse
ACG
>cat
TGG
>dog
AAG
>rat
CAG
>sheep
CCG
>cow
AAG

and the user enters 0 then the program should output "Not conserved".
If the user enters 2 then output "Conserved".
 
Your program should work for any input file and not just this example. 
Submit a hardcopy in class on Oct 28th.