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]: 2, 5, ['e', '7607', '3201', '3421', 'H', '543', '3489']
[EX A]: H342132017607

[EX Q]: 3, 6, ['4031', 'K', 'X', '2743', '453', 'X', '4777', 'T', 'I', '1435', '3873', '3103', '2099', '9651', '2917', '5711', '9881', 'o', 'I', 'p', 'H']
[EX A]: X4532743X

[EX Q]: 3, 4, ['8831', 't', '9731', '7995', '2073', '3979', '7167']
[EX A]:
79959731