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, 14, ['Y', '3111', 'M', 'N', 'l', '721', 'j', '997', 'e', '353', 'd', '167', '5485', 'C', '745', 'x', 'k', '7269', '5835', 'F', 'D', 'Y', 'a', '117']

Output: C5845761d353e799j127lN


Input: Consider Input: 7, 9, ['5683', 'M', '3363', 'H', '161', '6767', 'w', 'j', 't']

Output: tjw


Input: Consider Input: 17, 21, ['9765', '9027', 'D', '7189', 'f', '6897', 'U', 't', '9913', 'u', '8113', 'o', '903', '4569', 'h', 'E', '7203', '4233', 'F', '9123', 'p']


Output: p3219F33243027