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.

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

2, 4, ['4047', 'S', '4249', '1735', '207']
53719424S

17, 18, ['T', '4967', 'c', 'Z', 's', 'y', 't', '2661', '6243', 'F', '2581', '181', 'P', 'q', 'x', '763', '6279', 'v', 'b', 'X', 't', 'w', '6679', '7441', '3201', 'B', '1961', '783', '9657', 'Y']

v9726