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]: 1, 8, ['9669', '9577', '2831', 'Y', 'y', 'q', 'f', 'b', 'L', 'v', '5545', '7305']
[A]: bfqyY138277599669


[Q]: 6, 7, ['753', '4657', 'h', '13', '593', 'I', '7689', '717']
[A]: 9867I


[Q]: 4, 20, ['1423', 'F', '8337', '1689', '5175', '1339', 'S', '8895', 'K', 'I', '5', 'q', 'P', 'k', '4669', '5005', 'd', '4495', 'b', 'H', 'J', 'y', '895', '8759', 'y', 'f', 'q', 'D', 'v', '1107']
[A]:
Hb5944d50059664kPq5IK5988S933157159861