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: 3, 4, ['3097', 'E', '4255', '1665', '7179']

Output: 56615524


Input: Consider Input: 6, 11, ['B', 'j', '911', 'A', '7195', 'm', '7177', 'X', '2015', 't', 'P', 'x', 'F']

Output: Pt5102X7717m


Input: Consider Input: 8, 10, ['r', '9133', 'M', '3873', '5637', '2223', 'e', '5739', 'b', '2787']


Output: 7872b9375