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.

4, 17, ['897', 'R', 'L', '201', 'Z', 'o', 'A', '9367', 'E', 'G', '6653', 'i', 'V', 'F', '9433', 'G', '8073', '5739', '7009']
3708G3349FVi3566GE7639AoZ102

1, 7, ['P', 'h', '1443', 'b', 'K', '2641', '3831']
13831462Kb3441hP

21, 27, ['393', 'j', '4409', 'E', '3575', '235', '6557', '8025', '9489', 'p', '2657', '4715', 'z', '8577', 'e', '2373', '501', 'b', 'b', '7915', '4253', 'C', 'l', 'g', '8427', '7863', 'e', 'h']

e36877248glC3524