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]: 4, 17, ['q', '6715', '451', '8195', 'i', '9071', 'z', 'R', '5', '1511', 'j', 'r', '5707', '6951', '9165', 'c', '5117']
[EX A]: 5117c916569515707rj15115Rz9071i8195

[EX Q]: 12, 17, ['8471', '9863', '8113', 'v', 'R', '1465', 'Q', '7039', '3795', '1969', '7215', '7069', 'k', 'e', '8401', 's', '961']
[EX A]: 961s8401ek7069

[EX Q]: 3, 4, ['t', '9179', 'A', '4781', 'P', 'y']
[EX A]:
4781A