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.
Q: 7, 14, ['2077', 'G', 'I', '3165', '2905', 'o', '3557', 'D', '2499', '2275', '285', 'v', '5127', '1571', 'a', '5387', 'k', 'K', '315', '3915']
A: 
17517215v58257229942D7553