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:
7, 8, ['8843', '5431', 'X', 'g', '9661', 'x', '4869', '7651']

Ex Output:
48697651


Ex Input:
18, 22, ['R', '7403', 'b', 'R', 'y', '5343', '2589', '917', 'f', '5383', 'Q', 'f', '5491', 'j', 'v', '5073', '923', '5491', '6737', 't', 'S', 's']

Ex Output:
54916737tSs


Ex Input:
4, 8, ['3425', '3463', '1811', 'I', '9879', '783', '5721', 'x', '2127', 'B', '2501', 'l', '4459', '5081', 'E', 'p', 'L', 'H', '9373', 'z', '357', '25', 'b', 'G']

Ex Output:

I98797835721x