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.

[Q]: 4, 17, ['897', 'R', 'L', '201', 'Z', 'o', 'A', '9367', 'E', 'G', '6653', 'i', 'V', 'F', '9433', 'G', '8073', '5739', '7009']
[A]: 3708G3349FVi3566GE7639AoZ102


[Q]: 4, 12, ['H', 'r', 'n', 'Y', '173', '9285', '3105', '883', 'n', '8915', '6923', 'S', 'T', 'o', '1639', '8421', 'g']
[A]: S32965198n38850135829371Y


[Q]: 6, 18, ['5241', 'N', 'y', '719', 'k', 'S', 'k', '8649', 'f', 'C', 't', 'n', 'Y', 'c', 'f', 'g', 'k', 'C', 'b', 't', 'k', '535', '431']
[A]:
CkgfcYntCf9468kS