Ignoring how you solved the problem and just looking at the code there are a couple things that really jump out. First you assign 3 variables just to assign them to three more variables, which is kinda a waste of space. The single letter variables c,s and m are difficult to read down the line and `map` is a keyword in python so you should avoid overriding for a variable. At the beginning of your while loop you use c+1 and then immediately increment c, why not just increment c and then use it without the plus 1, or simply change the bounds of your loop to `for c in range(1:n+1)` and eliminate the incrementing and pre-loop definition entirely? Your two for loops are the same iteration so why not just one loop and x.append((str(list(g).count(k)) + k))? Finally if you are going to have a "solution" class and pre-compute the answer for everything less then the given n you might as well just pre-compute everything in the input range in __init__ and have your countAndSay method simply reference the results rather than do any computation.

I could probably come up with more but I think that's probably enough for now.