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]: 1, 3, ['4101', '9767', 'q', 'Z', '6853', '3643']
[EX A]: q76791014

[EX Q]: 10, 13, ['v', '9787', '3803', 'P', 'M', '7127', '7845', '6369', 'u', '8715', 'I', '7491', '6593', '459', '1747', 'L']
[EX A]: 39561947I5178

[EX Q]: 5, 6, ['8211', 'K', '3363', '6307', '1829', 'b', 'n', '9781', 'x', 'l', 'y', '3183', 'K']
[EX A]:
b9281