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]: 4, 6, ['U', '5099', '1125', 'U', '1693', '7717', 'P', '7679', 'E', '7747', 'D', 'Z', 'E', '4473']
[A]: 77171693U


[Q]: 1, 3, ['2351', 'k', '2321']
[A]: 2321k2351


[Q]: 2, 3, ['O', 'f', '6521', 'z', '6805', 'M', '7251', '9703', 'Z']
[A]:
6521f