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, ['6193', '5871', '9871', '4821']

A: 1284178917853916
****
Q: 7, 22, ['3371', '4741', 's', '7429', 'z', '639', 'Q', '5679', 'e', '8039', '5323', 'C', '2901', '7629', 'D', 'y', 'C', '4333', 'P', 'v', 'A', '8171']

A: 1718AvP3334CyD92671092C32359308e9765Q
****
Q: 20, 27, ['7489', 's', 'A', '627', 'W', 'I', 'O', 'f', '8759', '7835', '8055', '515', 'b', '1687', 'o', '9445', 'z', 'R', 'Z', '839', '9091', '2637', 'M', '3563', '3487', '2779', 'g']

A:
g977278433653M73621909938
****