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:
1, 2, ['1723', '6539']

Ex Output:
17236539


Ex Input:
21, 24, ['F', '9793', 'R', '7633', '6831', 'P', '4285', '7887', 'H', '307', '4865', 'M', '4521', '565', 'e', 'i', 'f', '8845', 'T', 'N', '3485', 'n', '1731', '4963', 'Y', '7493']

Ex Output:
3485n17314963


Ex Input:
11, 12, ['781', '8745', '3285', '4169', '1331', 'B', '8955', '8519', '6365', '9415', 'u', '2623', 't', '2539', '5085', '4489', 'k']

Ex Output:

u2623