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.

[Q]: 6, 14, ['505', 's', '3619', 's', '2871', '6403', 'b', 'M', 'Q', '9645', '9425', 'V', '873', 'l', '2917', 'Q', '9465', 'z', '1513', 'S', 'e', '9733', '7669', 'B']
[A]: l378V52495469QMb3046


[Q]: 7, 8, ['9589', 'N', 'w', '429', '5545', '5047', '4133', 'p', 'a', '3793']
[A]: p3314


[Q]: 2, 13, ['9169', 'n', '9445', '9029', 'q', '2291', '5993', 'x', 'k', '8831', 'o', '819', 'R', 'v', '6695', '8813', '8111', '3025', '4041', '7271', '2561', '7707', 'd', '4939', 'a']
[A]:
R918o1388kx39951922q92095449n