           """
38. Count and Say

The count-and-say sequence is the sequence of integers with the first five terms as following:

1.     1
2.     11
3.     21
4.     1211
5.     111221
1 is read off as "one 1" or 11.
11 is read off as "two 1s" or 21.
21 is read off as "one 2, then one 1" or 1211.
Given an integer n, generate the nth term of the count-and-say sequence.

Note: Each term of the sequence of integers will be represented as a string.

Example 1:

Input: 1
Output: "1"
Example 2:

Input: 4
Output: "1211"

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"""
# MOWN solution
# string parsing

class Solution(object):
    def countAndSay(self, n):
        """
        :type n: int
        :rtype: str
        """
        string = '1'
        for i in range(2, n+1):
            new_string = ''
            current_num = None
            current_count = 0
            for char in string:
                if current_num:
                    if current_num == char:
                        current_count += 1
                    else:
                        new_string += str(current_count) + current_num
                        current_count = 1
                        current_num = char
                else:
                    current_num = char
                    current_count += 1

            if current_num:
                new_string += str(current_count) + current_num

            string = new_string

        return string
