In this task, you are given inputs 'i', 'j', and A, where 'i' and 'j' are integers and A is a list. A list is shown by two brackets and comma-separated numbers and characters inside, like ['1', '12', 'l']. You need to concatenate all elements of A from the ith element to the jth element, and then reverse the resulting 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 reverse first and then concatenate.
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Question: 1, 1, ['341', '939']

Answer: 143


Question: 3, 10, ['q', '8815', '5453', 'n', '5103', 'X', 's', '9739', '1301', 'v', 'F', 'm', 'S', 'd', '6649', '2087', '4295', '8891', '5845', '577', 'I', 'U', '9195', 'E', 'o', '7229']

Answer: v10319379sX3015n3545


Question: 6, 14, ['w', '9517', 'G', 'Z', 'u', 'p', 'L', '9441', '1839', '431', 'k', '3111', '6577', 'm', '1541', 'U', '405', '1139', 'X', '531', '6271', '5623']

Answer:
m77561113k13493811449Lp