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.
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Question: 6, 11, ['49', 'n', 'R', '3171', '8781', '8973', '5647', '8111', '8795', '7361', '3335', 'B']

Answer: 333573618795811156478973


Question: 5, 10, ['3193', '1089', '3677', '2973', 'A', 'f', '3047', '6709', '4089', 'X', 'A', 'j', '5703', '2787', '2429', '9605', '6061', 'G', 'Y', 'b', '8741', '4199', 'f']

Answer: X408967093047fA


Question: 4, 20, ['a', 'K', '3873', 'l', 'g', 'f', 'h', '1119', 'Q', '8921', 'A', '47', '7717', 'U', '2581', 'X', '3955', '9367', '8341', '5177', '1673', 'k', '6765', 's', '8361', 'S', 'k']

Answer:
5177834193673955X2581U771747A8921Q1119hfgl