Definition: 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.
Input: 1, 7, ['H', 'F', 'R', '6469', '1845', '7659', '9055', '3921', 'n', 'g', '2479', 'R', 'i', 'f', '315', 'l', 'h', '67', 'F', 's', 'k', 'J', '3901', 'B', 'd', '6931', 'x']

9055765918456469RFH