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.

[EX Q]: 13, 15, ['I', 'y', '3037', 'i', 'I', 'x', 'r', 'i', 'g', '1141', 'z', '8639', 'v', 'p', '7901', 'A', 'e', '7599']
[EX A]: 1097pv

[EX Q]: 3, 11, ['417', 'C', '4183', '9031', 'a', 'e', 'v', '4967', 'G', 'L', '8409', 'X', '6863', '8165', '1111', '6627', 'V', 'd', '45', '299', 'o']
[EX A]: 9048LG7694vea13093814

[EX Q]: 22, 26, ['7319', '4519', 'T', 'E', 'e', '405', 'z', '9803', '2857', '7841', 'd', 'm', '7839', 'E', 'B', 'C', '2975', '7179', '3445', '5107', 'O', '8293', '9427', '5437', '5263', 'S', '975']
[EX A]:
S3625734572493928