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 Q]: 1, 4, ['a', '9257', 'K', '3909', '1655']
[EX A]: 3909K9257a

[EX Q]: 1, 12, ['6225', 'S', 'E', '3433', 'E', '2617', 'k', 'k', '3927', 'V', 'R', '9569']
[EX A]: 9569RV3927kk2617E3433ES6225

[EX Q]: 6, 10, ['B', '7427', '5253', '481', '39', '7673', '7319', '6251', '6437', '933', 'Z', 'T', 'o', 'x', '1231', 'D']
[EX A]:
9336437625173197673