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: 4, 9, ['2731', '4987', '2927', '8573', 'O', '8349', '9507', 'K', '7307', 'V']

Output: 7037K70599438O3758


Input: Consider Input: 5, 9, ['V', 'G', '4689', 'I', '6573', 'v', '4999', 'V', 'H', 'U', '2383', '489', '8517', 'K', 'A']

Output: HV9994v3756


Input: Consider Input: 3, 6, ['K', 'A', 'G', 'C', '1177', 'Q', '8627', 'R', '6631', 'h', '8009']


Output: Q7711CG