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: 4, 12, ['S', '1783', 'd', '3489', '2291', '4757', 'b', '5761', 'Y', 'M', '6453', '2477', 'B', 'm', '6749', 'S', '3291', 'L', '8725', '8637', 'l', '1747']
Example Output: 77423546MY1675b757419229843

Example Input: 5, 14, ['E', 't', '3441', '459', '6559', 'q', 'b', '2583', 'Z', 'X', 'F', 'j', '601', '2137', 'S', '9739', 'c', 'I', 'l', '4443']
Example Output: 7312106jFXZ3852bq9556

Example Input: 3, 5, ['Z', '7573', 'y', 'k', 'R', '7621', '2709', 'D', 'e', 'H', '5951']
Example Output:
Rky