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, 4, ['3633', 'k', '9685', 't']

A: t5869k3363
****
Q: 5, 7, ['1245', '6761', 'w', 'A', '2303', '1045', 'H', '6193', '6147', 'H', 'S', '305', '7895']

A: H54013032
****
Q: 5, 7, ['x', '2397', '4317', 'x', '4521', '9045', 'W', '2335', 'x', '4221', '7301', '3701', 'X', 'l', '7795', '8041', '9119', 'e']

A:
W54091254
****