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 find all elements of A from the ith element to the jth element, reverse the order in which they occur, and then concatenate them to output 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. Perform the operations in order, i.e., do not concatenate the elements and then reverse the string.

[EX Q]: 15, 16, ['243', '3195', '1763', '1283', '1463', '2655', '7', 'S', 's', '3155', 's', 'D', '7659', 'Q', 'm', '3821', '593', 'D', '5447']
[EX A]: 3821m

[EX Q]: 13, 16, ['w', '1993', 'O', '7475', 'Q', '1431', 'X', '5305', '8051', 'p', 'P', 'Z', 'S', '4277', 'G', 's', 'n', '4837', 'l', '5727', '3519']
[EX A]: sG4277S

[EX Q]: 1, 5, ['9143', 'F', 'B', '5989', '6645', '5985', '6747', '1121', 'N', 'i', '8571', 'Y', '6441', '5065', '5067', '3879', '483', 's', '2309', 'C']
[EX A]:
66455989BF9143