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]: 18, 22, ['2445', 'L', 'x', 'i', '9929', '3105', 'v', '445', 'O', '353', 'j', '9877', 'D', 'U', '885', '9485', 'V', '8219', '2963', '685', '1659', 'U']
[EX A]: U165968529638219

[EX Q]: 7, 18, ['2347', 'y', 'i', 'G', 'p', '821', 'l', 'K', '2571', '3897', 'I', 'X', 'o', 'w', 'F', 'h', 'o', 'k']
[EX A]: kohFwoXI38972571Kl

[EX Q]: 20, 27, ['5597', 'd', '7663', '4131', '8769', 'n', '5023', 'E', 'x', 'c', '983', 'Q', 'z', 'i', 'f', 'i', '435', 'G', '7989', 'Q', 'o', '5601', 'a', 'W', '2443', 'f', 'y']
[EX A]:
yf2443Wa5601oQ