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: 12, 20, ['J', '903', 'e', '7429', 'p', '77', 'C', '5763', '9225', '5943', '7791', 'O', 'f', '3093', '9703', 'i', 'R', '5595', 'W', 'E', '1697', 'h', 'g', 'N', 'Y', 'Y', '8557']

EW5595Ri97033093fO