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.

1, 2, ['L', '7723']
3277L

3, 11, ['417', 'C', '4183', '9031', 'a', 'e', 'v', '4967', 'G', 'L', '8409', 'X', '6863', '8165', '1111', '6627', 'V', 'd', '45', '299', 'o']
9048LG7694vea13093814

16, 17, ['8971', 'B', 'o', '6485', '1409', '8731', 'R', '4071', 'Q', '5383', '5269', '6113', '6671', 'l', '6267', 'Z', '499', 'U', '721', '9997', '2389', '3255', 'T', '6929', 'L', '8209']

994Z