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.

3, 8, ['w', '7571', 'o', '235', 's', 'n', '3941', '6357', '3251', 'G', '5961', 'z', 'N', '5029', '7589', '3993', '5087', '6351', '5799', '1943', '7661', 'S']
75361493ns532o

4, 7, ['C', 'j', 'F', '495', 'H', '6595', 'h', '7567', 'f']
h5956H594

5, 6, ['C', 'U', 'S', 'P', '3793', 'e', 'h', '4415', 'L', 'c', 'P']

e3973