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.

4, 6, ['5237', 'U', '7073', 'K', 'R', 'g', 'D', '17', 'I', '3039']
gRK

8, 10, ['l', '7437', '8763', 'i', '3635', 'O', '6275', '1121', 'h', 'Y']
Yh1121

7, 10, ['2891', 'H', 'r', '9931', '3999', 'p', '4813', 'f', 'z', 'o', '9121', '1689', 'B', '7499']

ozf4813