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]: 3, 8, ['6673', '3503', 'j', 't', 'y', 'q', 'S', '2339', 'B', 'C', 'b', 'K', '3323']
[A]: 9332Sqytj


[Q]: 3, 10, ['q', '8815', '5453', 'n', '5103', 'X', 's', '9739', '1301', 'v', 'F', 'm', 'S', 'd', '6649', '2087', '4295', '8891', '5845', '577', 'I', 'U', '9195', 'E', 'o', '7229']
[A]: v10319379sX3015n3545


[Q]: 1, 21, ['P', '4213', '757', 'x', 'K', 'u', '3033', '2133', 'h', '3361', '7613', 'c', 'L', '3675', 'B', 'R', 'x', '4171', 'W', 'f', '5213', '1669', 'Z', 'y', 'D', 'w', 'l', '7199', 'a']
[A]:
3125fW1714xRB5763Lc31671633h33123303uKx7573124P