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]: 1, 3, ['2351', 'k', '2321']
[EX A]: 2321k2351

[EX Q]: 4, 15, ['493', '873', 'A', '5191', 'M', '9949', '3027', '3633', 'E', '8037', 'U', '5273', 'g', 'G', '6167', 'a', '61', 'U', '2005', '5249', 'y', '5573']
[EX A]: 6167Gg5273U8037E363330279949M5191

[EX Q]: 8, 11, ['n', 'e', 'E', 'W', 'X', '7641', '7775', 'Q', 'e', 'h', 'B', 'B', '1661', 'Z', 'R', '8613']
[EX A]:
BheQ