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.

7, 9, ['4311', 'Q', 'j', '3613', '9671', 'u', 'y', '3321', '2069', '4299', 'W', 'c', '627', '1327', '9747', 'Q', 'k', '9587', '5911']
96021233y

4, 4, ['339', '1345', '9749', '6877', 'b', 'K', 'f', '1443']
7786

4, 17, ['1729', 'z', '4285', '1175', 'P', 's', '3607', '3865', '6613', 'B', 'V', '3037', '3837', '229', '7981', '7221', '1151', 'j', '5425', 'U', 'Z']

15111227189792273837303VB316656837063sP5711