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:
9, 11, ['4913', 'd', 'B', 'e', 'o', '4507', 'J', '6137', 'B', 'g', '6057', 'z', 'v', '4845', 'n', '995', '4201', 'X', '1459', '3089', '2551', '5013', 'R', 'e', '1077', 'g', 'V', '2905']

Ex Output:
Bg6057


Ex Input:
4, 8, ['I', '5999', 'n', 'F', 'r', '179', '8477', 'U', '7461', 'N', '1319', 'N', 'a', 'i', '1141', '1903', 's', 'n', 'L', 'v', 'J', '7245', '627', 'p']

Ex Output:
Fr1798477U


Ex Input:
5, 21, ['2709', '8235', '9703', 'I', '6391', 'H', '8711', '7651', '7843', '3149', 'B', '6489', 'h', '7525', '6799', 'i', 'b', 'M', 'Y', 's', 't', '4849']

Ex Output:

6391H8711765178433149B6489h75256799ibMYst