In this task, you are given inputs i, j, and A, where i and j are integers and A is a list. You need to find all elements of A from the ith element to the jth element, reverse the order in which they occur, and then concatenate them to output the resultant 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 concatenate the elements and then reverse the string.

Example Input: 12, 18, ['N', '9555', 'H', 'd', '7941', 'U', '1965', 'G', 'E', '6947', 'q', '2341', '7909', 'n', '8625', 'r', 'M', 'F']
Example Output: FMr8625n79092341

Example Input: 2, 22, ['E', '9437', 'R', 'M', 'p', 'A', '7261', '4163', '8357', '6555', 'I', 'T', '5471', 'G', 'S', '3447', 'C', '5845', 'I', '3817', 'p', '6781']
Example Output: 6781p3817I5845C3447SG5471TI6555835741637261ApMR9437

Example Input: 5, 14, ['f', '5793', '2477', '1541', 't', 'l', '9949', 'Y', 'L', '8647', 'R', 'U', 'v', 'w', '8173', 'm', 'o', 'e', 'l', 'r', '6981', '4217', '227']
Example Output:
wvUR8647LY9949lt