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: 6, 19, ['5701', '5045', '6443', 'N', 'm', '3577', 'B', 'X', 'F', '7309', '3013', 'q', '8183', 'S', '3781', 'g', 'r', 'Z', '8147', 'M', '5275', '851', '7985', '5247', 'J', '5427']
Example Output: 7418Zrg1873S3818q31039037FXB7753

Example Input: 2, 22, ['43', 'V', '469', '8463', 'E', 'J', 'N', '4049', 'f', '8529', 'R', 'P', 't', '6217', 'v', '8311', 'R', '2055', 'g', '6011', '2567', 'O', 'r', 'K', '8757', 'l', '9205', 'k', '6959']
Example Output: O76521106g5502R1138v7126tPR9258f9404NJE3648964V

Example Input: 7, 20, ['K', 'd', '7751', 'a', '6259', 'e', 'z', '339', '9439', 'o', 'w', 'P', '619', 't', 'c', 'd', '7359', '6045', 'w', '8311', 'M', '4479', '245', '5337', 'c']
Example Output:
1138w54069537dct916Pwo9349933z