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:
4, 15, ['d', 'P', 'D', '5601', '3115', 'O', 'h', '1521', '8467', '5275', '6455', '1579', 'w', 'f', '9647', 'z', 'i', '4137', '7581', '6173', 'V']

Ex Output:
9647fw15796455527584671521hO31155601


Ex Input:
6, 12, ['6079', '7441', '8259', 'I', 'a', '7597', '3011', '2885', 'N', '1919', '8255', '8241', '5985', '3067', 'y']

Ex Output:
824182551919N288530117597


Ex Input:
2, 3, ['273', 't', '7717', '7107']

Ex Output:

7717t