In this task, you are given inputs i, j, and A, where i and j are integers and A is a list. You need to find all elements of A from the ith element to the jth element, reverse the order in which they occur, and then concatenate them to output the resultant 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 concatenate the elements and then reverse the string.

Ex Input:
5, 10, ['3193', '1089', '3677', '2973', 'A', 'f', '3047', '6709', '4089', 'X', 'A', 'j', '5703', '2787', '2429', '9605', '6061', 'G', 'Y', 'b', '8741', '4199', 'f']

Ex Output:
X408967093047fA


Ex Input:
10, 16, ['3169', '993', '6245', '3203', '9441', '47', '435', '3305', 'N', '1679', '9655', 'Q', 'j', '4409', 'X', '9031', 'e', 'J', '7379']

Ex Output:
9031X4409jQ96551679


Ex Input:
1, 15, ['y', 'M', '4905', 'O', '5281', 's', '6021', '4001', '699', 't', '6701', 'n', 'o', 'o', '8605', 'R', '3793', 'i', 'z', 'x', 'p', '7095', '3565', '3365', 'a', '8719', '8517']

Ex Output:

8605oon6701t69940016021s5281O4905My