In this task, you are given inputs i,j, and A, where i and j are integers and A is a list. You need to concatenate all elements of A from the ith element to the jth element, and print the resultant string. i and j will be non-negative, and will always have a value less than the length of A. i will always be less than j.

Ex Input:
3, 3, ['A', '2469', 'L']

Ex Output:
L


Ex Input:
5, 6, ['C', 'z', 'y', '2559', '817', 'A', 'X', 'l', '749', 'B', 'p', '5497', '5577', 'b', '5457', 'G', 'o', 'z']

Ex Output:
817A


Ex Input:
7, 9, ['e', 'g', 'I', '8547', '1857', '2769', 'K', 'h', '8863', 'm', 'q']

Ex Output:

Kh8863