instruction:
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.
question:
5, 7, ['B', '7943', 'H', 'E', 'p', 'D', 'L', '625', '2757', '4429', '863', 'z', 'l', 'f', '3467', 'X', '4961', 'T', 'k', '1021', 'T', '2249', 'S', 'D']
answer:
LDp


question:
3, 9, ['Y', '9075', '2327', '1643', '655', '935', 'a', 'j', 'm']
answer:
mja53955634617232


question:
12, 28, ['V', '6561', 'h', '5713', 'F', '4879', 'j', '6883', 'J', 'K', '3269', 'm', '3707', '8739', '2565', '6089', 'b', 'P', 'u', 'p', '2593', '6749', '5169', '7919', '3363', '8757', '837', 'g', '9315']
answer:

g738757836339197961594763952puPb9806565293787073m