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.

5, 7, ['2695', 'K', 'B', 'h', 'V', '6435', 'Q', '2881', '7385', '8941']
Q5346V

3, 5, ['w', 'i', 'X', '9493', 'g', 'K', 'h', 'X']
g3949X

2, 4, ['B', '7661', '7051', 'K', '3905', '2709', '5873']

K15071667