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, 4, ['4047', 'S', '4249', '1735', '207']

Output: 53719424S


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

Output: 395413215086G11495185


Input: Consider Input: 4, 16, ['g', 'n', '2015', 'G', '9629', '6931', 'o', '3607', 'z', '5707', 'A', '1035', '1901', '5031', 'd', '5279', 'y', 'o', '8127', 'B', '5909', 'l', '3575', 'F', 'o']


Output: 9725d130510915301A7075z7063o13969269G