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:
17, 19, ['5683', 'y', 'r', '4601', 'a', 't', 't', 'l', 'F', '227', '8869', 'J', 'X', 'a', '3967', 'm', 'j', '6669', '2221']

Ex Output:
j66692221


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

Ex Output:
17236539


Ex Input:
13, 18, ['H', 'f', '8965', '3287', '923', '4275', 'P', '7431', '1935', '223', 'H', 'u', '4051', '2873', '2465', 't', 'a', '9307', '5337']

Ex Output:

405128732465ta9307