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.

4, 13, ['9747', 'g', 'z', 'I', 'a', '8619', '6035', '4209', 'M', '5157', 'J', '2399', '3935', 'e', '531', '9759', '4253', '7311', 'G', '4751', '3589']
53939932J7515M902453069168aI

3, 6, ['A', '6949', '2045', '119', '1373', '9613']
316937319115402

6, 14, ['1601', '9613', '5023', 'F', '5705', '8835', '4309', 'c', '3865', '9067', 'k', 'O', '7709', 'a', 'a', '6993']

a9077Ok76095683c90345388