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:
2, 11, ['7257', 'o', 'r', '443', '9499', '1915', 'm', 'C', '6051', 'm', 's', '4593', 'O', 'V', '363', '793', '7765']

Ex Output:
sm6051Cm19159499443ro


Ex Input:
1, 12, ['6225', 'S', 'E', '3433', 'E', '2617', 'k', 'k', '3927', 'V', 'R', '9569']

Ex Output:
9569RV3927kk2617E3433ES6225


Ex Input:
7, 7, ['X', 'M', '3129', 'q', 'w', '8495', '1239']

Ex Output:

1239