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: 2, 18, ['8671', 'd', '5109', '1915', 'h', '2777', '3087', '9861', '8597', 'P', '4505', 'j', 'M', 'O', 's', 'Q', '2703', 'X', 'l', 'g', '1801']

Output: X3072QsOMj5054P7958168978037772h51919015d


Input: Consider Input: 15, 23, ['Z', 'h', '4813', '7715', '8439', 'K', '9249', 'F', '9871', '6511', '1841', '4613', '5657', '8623', '4613', '8861', 'v', '3809', 'F', '7859', '9527', '4655', 'l', '8455', '4727', 'V', 'I', 'H', '3505', '6039']

Output: l556472599587F9083v16883164


Input: Consider Input: 6, 13, ['4209', '4581', '7659', 'o', 'g', '6877', '2069', 'I', '6473', '9763', '2839', '6659', '3859', '1899', '3899', 'm', '7293', 'R', 'k', 'h', '711', 'q', '8697', 'N', 'a', '3139', '3259']


Output: 95839566938236793746I96027786