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.

7, 22, ['3371', '4741', 's', '7429', 'z', '639', 'Q', '5679', 'e', '8039', '5323', 'C', '2901', '7629', 'D', 'y', 'C', '4333', 'P', 'v', 'A', '8171']
1718AvP3334CyD92671092C32359308e9765Q

4, 9, ['8189', 'M', 'Y', '2695', '3381', '3829', '117', '3843', '7469', '3611', 'e', '4127', 'V', 'X', 'V', '4535', 'M']
96473483711928318335962

12, 21, ['2269', '5319', 'O', '9691', 'U', 'k', '8753', '413', '7045', '5695', '4607', '5481', '9035', '1653', 'L', 'r', 'G', '7349', 'V', '9167', '7789', '6399', 'A']

98777619V9437GrL356153091845