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.

Input: Consider Input: 5, 10, ['u', '8019', 'o', '2667', '5815', '9411', 'G', '6805', '1231', '4593', '2271', '3409']

Output: 395413215086G11495185


Input: Consider Input: 7, 10, ['417', '8131', '7239', '9699', 'z', 'H', 'P', '9349', '4835', '3217', '9899']

Output: 712353849439P


Input: Consider Input: 9, 20, ['6063', 'J', 'i', 'Z', 'Y', '5483', '2603', 'K', '8483', 'A', 'f', '9539', 'F', 'M', '7587', 'V', '4705', '7957', 'p', '2461', '4019', 'c', 'C', '9971', '7721']


Output: 1642p75975074V7857MF9359fA3848