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:
2, 2, ['7147', 'T', '8623', '4399', '8963', 'B', 'r', 'x', 'F', 'L', '5201']

Ex Output:
T


Ex Input:
15, 16, ['477', 'w', '3757', '153', 'F', '8237', 'T', 'F', '6691', '4859', '4421', 'r', 'U', 'O', 'e', '3579', '589', 's', 'Q', 'h', '9889', '5355']

Ex Output:
e3579


Ex Input:
2, 4, ['L', 'u', '8919', '6327', 'Q', '863', '4583', 's', 'A', '2219', '8505', 'u', '7285', '6499', 'i', '5737', 'Z', '6395']

Ex Output:

u89196327