Definition: 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.
Input: 3, 12, ['9187', '5397', 'j', '7891', 'x', 'X', 'd', '5337', 'c', 'R', 'z', 'k', '5901', 'Q', '2421', '1917', '6005', '1685', 'r', '5527', '6897', '79', 'g', '3747', '1353', '9321', 'q']

kzRc5337dXx7891j