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.

[Q]: 3, 3, ['U', '8399', '645', '3165']
[A]: 645


[Q]: 10, 19, ['9017', 'g', '6645', 'u', '993', '8505', '685', 'L', 'p', 'M', 'H', '7955', 'l', '1283', '1007', 'l', '7905', '1291', '5309', '6367', 'n']
[A]: 530912917905l10071283l7955HM


[Q]: 20, 25, ['Z', '5753', '933', 'h', '3091', 'y', 'y', 'K', '7591', 'h', '7663', 'j', 'X', '5121', '5979', '1535', '1551', 's', 'C', '6305', '2679', 'C', '3097', 'n', 'j', '8873', 'z']
[A]:
jn3097C26796305