LeetCode : ZigZag Conversion

 Question :- https://leetcode.com/problems/zigzag-conversion/

Solution :- 

class Solution:

    def convert(self, s: str, numRows: int) -> str:

        converted_str = ""

        start_index = 0

        index_num = numRows + numRows-1 -1

        for i in range(0,numRows):

            while(start_index<len(s)):

                converted_str+= s[start_index]

                start_index = start_index+index_num

            start_index = i

            index_num = index_num-2

            print(converted_str)

        return converted_str

s = "PAYPALISHIRING"

number = 3

ss = Solution()

print(ss.convert(s,number))