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: 2, 16, ['6623', 'E', 'S', '8679', '7465', '2769', 'G', '9635', 'Z', 'Y', '6593', '9535', '5247', '2185', '7071', 'P', '7897', 'm']

A: P17075812742553593956YZ5369G967256479768SE
****
Q: 5, 6, ['7319', 'U', 'Z', '1163', '8123', '4861', '117', '3893', '2489', 'S', '1511']

A: 16843218
****
Q: 1, 18, ['h', 'c', 'J', 'C', '2371', '7267', 'T', 'W', '1277', 's', 'g', '4555', 'n', 'g', '1535', '4369', '9577', 'R', 'p', '7441', 'r', '3533', 'h', '1045', '2211', 'g', '6349', 'i', '9305', '5295']

A:
R775996345351gn5554gs7721WT76271732CJch
****