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: 2, 7, ['9969', 'u', '9811', 't', 'z', '8347', 'i', 'O', '5897']

A: i7438zt1189u
****
Q: 13, 13, ['1575', 'D', '1335', '2335', 'D', '9893', 'U', 'j', '5145', '6041', '2655', 'r', '5243', '8745', '7439']

A: 3425
****
Q: 4, 9, ['3139', 'E', 'E', '7429', 'c', 'c', 'p', '6431', 'r', '9727', '6883', 'l']

A:
r1346pcc9247
****