Write a Python script that prints "Conserved" or "Not conserved"
for *every* column in the input alignment. 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

then your program should output

Column 0 is not conserved
Column 1 is not conserved
Column 2 is conserved
 
Your program should work for any input file containing any number of 
aligned sequences of any length and not just the above example. 

Submit a hardcopy in class on Nov 1st.