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.

5, 12, ['6701', '3911', '1591', '3829', '3381', 'J', '8635', 'r', '8867', 'N', '2397', '1677', 'c', '9799']
77617932N7688r5368J1833

1, 4, ['t', '6037', 'I', '2769', 'C']
9672I7306t

17, 21, ['1639', 'Y', '5027', '4465', 'p', 'E', '3631', '3767', 'O', 'N', 'C', '9017', 's', '9647', 'r', '205', 'V', 'p', '351', '4277', '6447', '3493', 'f', 'E', 'a']

74467724153pV