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, 7, ['E', 'A', 'd', 'a', 'S', '851', '8465', '3205', '5169', '7097', '1679', '3875', 'B', '4761']
Example Output: 5648158

Example Input: 2, 10, ['1183', '2299', 'O', '963', 'E', '9319', 'L', 'R', '1293', '8707', 'n', 'D', '6721', '2219', '3293', 'J', '4673', '325', '285', '5331']
Example Output: 70783921RL9139E369O9922

Example Input: 16, 27, ['P', 'z', 'm', '959', 'J', 'S', 't', '7511', 'v', 'm', 'J', 'n', '8955', '1655', '6099', 'm', '1493', '8053', '389', 'v', '8293', '3255', 'o', '6591', 'F', 'f', '2599']
Example Output:
9952fF1956o55233928v98335083941m