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.

3, 8, ['b', 'y', '8779', '3949', 'c', 'a', '111', '6649']
9466111ac94939778

2, 11, ['G', 'z', 'w', 'C', 'h', '6193', 'T', 'r', 'f', 'h', 'p', 'R']
phfrT3916hCwz

11, 16, ['433', 'B', '8913', '4483', '7529', '2771', 'I', '2461', 'w', '2621', '5583', 'w', '7013', '3515', 'n', 'U']

Un51533107w3855