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]: 12, 29, ['4267', '7621', 'e', 'd', '2685', '3417', 'V', 'E', '3849', '6875', '1093', '9451', '3257', '6313', 'K', 'j', '3551', 'l', 'J', 't', 'V', '7965', '307', 'A', '3733', 'Y', '8649', '8475', 'X']
[EX A]: X57489468Y3373A7035697VtJl1553jK313675231549

[EX Q]: 3, 10, ['9543', '2797', '3939', '8207', '329', 'l', '5353', '8849', '5579', '7445']
[EX A]: 5447975594883535l92370289393

[EX Q]: 1, 17, ['s', 'u', 'e', '6617', '9953', '3925', 'F', 'J', 'o', 's', '7207', '9751', '8913', '8221', '75', '8013', 'z']
[EX A]:
z3108571228319815797027soJF529335997166eus