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

A: g3949X
****
Q: 4, 7, ['3421', '6129', '593', '203', '2731', '1393', '9739', '1087', '3453', '1389', 'W', 'D', 'b', '9261']

A: 937939311372302
****
Q: 1, 7, ['B', '707', '7101', 'l', 'i', 'Q', 'e', '9437', 'i', '4709', 'w', 't', '1459', 'A', 'E', '923']

A:
eQil1017707B
****