In this task, you are given inputs 'i', 'j', and A, where 'i' and 'j' are integers and A is a list. A list is shown by two brackets and comma-separated numbers and characters inside, like ['1', '12', 'l']. You need to concatenate all elements of A from the ith element to the jth element, and then reverse the resulting 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 reverse first and then concatenate.

Example Input: 1, 4, ['6193', '5871', '9871', '4821']
Example Output: 1284178917853916

Example Input: 4, 20, ['H', '7451', 'X', 'i', '951', '1913', '9949', 'W', '4759', '1309', '1981', 'C', 'J', 'F', '4125', 'l', 'i', 'z', 'S', 'R', '5025', '5959', '1323', 'K', 'O', 'x', '5121', 'c', 'C']
Example Output: RSzil5214FJC189190319574W94993191159i

Example Input: 5, 17, ['F', '4885', 'h', 'Y', '1101', 'R', 'Q', '8369', '7173', 'c', '5715', '869', '7877', 'R', '9095', '2133', 'P', 'u', '425']
Example Output:
P33125909R77879685175c37179638QR1011