https://www.hackerrank.com/challenges/re-start-re-end
start() & end()
These expressions return the indices of the start and end of the substring matched by the group.
Task
You are given a string S.
Your task is to find the indices of the start and end of string k in S.
Input format
The first line contains the string S. The second line contains the string k.
Output format
Print the tuple in this format: (start _index, end _index).
If no match is found, print (-1, -1).
Sample Input 0
aaadaa
aa
Sample Output 0
(0, 1)
(1, 2)
(4, 5)