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]: 4, 9, ['d', '1057', '5737', '6925', '6365', 'y', 'w', '6535', 'P', 'F']
[EX A]: P5356wy56365296

[EX Q]: 8, 8, ['911', 'n', '261', 'J', '1181', '6903', '2085', '5225', 'N', '4041', '4891', '6241']
[EX A]: 5225

[EX Q]: 15, 20, ['H', 'f', 'w', 'H', 'U', 'R', '6209', 'd', 'A', 'u', 'W', 'N', 't', '5165', 'w', 'E', 'h', '2725', 'Y', 'o', 'b']
[EX A]:
oY5272hEw