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: 1, 2, ['A', '8103', '7829']

Output: 3018A


Input: Consider Input: 1, 2, ['e', 'F']

Output: Fe


Input: Consider Input: 5, 10, ['375', '1667', 'y', '2479', '2887', '1175', '1073', 'N', 'u', 'F', 'G', '7003', '77', 'j', 'I', 'R', 'V', '691', '3915', 'S', '4271', '9121', 'k', 'l', '7561', 'K', 'E', 'm', 'k']


Output: FuN370157117882