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]: 9, 25, ['u', 'b', '4819', 'm', 'm', '1651', 'H', 'O', '481', 'I', 'g', '8861', 'b', '2641', 'D', '5411', '7731', 'I', '257', 'I', '2055', '5441', '7079', 'D', '93', '6783']
[EX A]: 39D970714455502I752I13771145D1462b1688gI184

[EX Q]: 3, 22, ['5347', 'e', 'a', 'i', 'o', 'W', '3101', '5381', 'u', '8799', 'r', '7559', '9931', 'V', 'l', 'v', 's', 'q', 'C', 'o', '7803', 'c']
[EX A]: c3087oCqsvlV13999557r9978u18351013Woia

[EX Q]: 1, 2, ['R', 'h', 'u']
[EX A]:
hR