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:
3, 6, ['3843', 'S', 'Z', '6311', '7521', 'e', 'q', '7861', 'Q', '6899', '7079', 'Z', '1523', '1703', 'B', 'l', 'T', '1111', '351', 'k', '8493', 'c', '2861']

Ex Output:
e75216311Z


Ex Input:
17, 27, ['k', 'p', 's', '3925', '4913', 'u', '983', '6355', '7185', 'k', 'N', '6665', 't', '6471', 'i', '139', '3221', '9603', '5031', 'P', '4677', 'o', 'x', 'Y', 'E', 'f', 'G']

Ex Output:
GfEYxo4677P503196033221


Ex Input:
1, 6, ['4107', 'R', '8665', 'U', '2363', 'h', 'w', 'h']

Ex Output:

h2363U8665R4107