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: 6, 18, ['7925', 'Q', '6779', '425', '8043', 'R', 'H', 'n', 'R', '4255', 'G', 'p', '5441', 'M', 'u', '8797', '2863', 'N', 'W', 'l', '7147', 'M', '5575', '7705', '4261', '4563', 'v', '955']

Answer: N36827978uM1445pG5524RnHR


Question: 10, 11, ['6929', 'l', '8541', 'L', '7495', '7707', '8839', '6687', 'L', '5125', 'd', 'F', '7', '4357', 'w', 'R', '2459', '9871', 'E', '299', '5967', 'T']

Answer: d5215


Question: 11, 16, ['5597', '4595', '8935', 'H', 'c', '937', '5789', 'M', '1221', '9979', '4617', '3379', 's', 'z', 'U', '2945', '8783', '2909', 'C']

Answer:
5492Uzs97337164