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, 2, ['N', '1117', '1343']

A: 7111N
****
Q: 4, 13, ['9747', 'g', 'z', 'I', 'a', '8619', '6035', '4209', 'M', '5157', 'J', '2399', '3935', 'e', '531', '9759', '4253', '7311', 'G', '4751', '3589']

A: 53939932J7515M902453069168aI
****
Q: 6, 19, ['6437', 'E', 'P', 'l', '3271', 'e', '8205', '5515', 'O', 'P', 'v', 'S', '171', '8383', '7397', 'm', 'x', '3423', 'B']

A:
B3243xm79373838171SvPO51555028e
****