Teacher: 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.
Teacher: Now, understand the problem? If you are still confused, see the following example:
1, 3, ['238', 'h', '92', 'U', '2799']
Solution: 29h832
Reason: Here, concatenating all the elements between the 1st element and 3rd element and then reversing the string gives '29h832'.

Now, solve this instance: 8, 16, ['M', '7569', '8333', '9455', '6061', '8227', 'd', '5305', 'h', 'a', 'f', 'E', 'A', '1059', '9909', 'J', 'G', '5233', '3449', '223', '5993', '1819', '5099', '8227', 'n', 'A', 'I', 'M', 'o', 'R']
Student:
J90999501AEfah5035