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, 28, ['N', '4679', '6605', 'X', 'q', '3147', '2627', '4015', '9819', '7969', 'K', 'a', 'N', 'M', '945', '4817', 'e', 'U', 'Z', 'y', 'u', '4053', 'f', 'r', 'A', '3573', '2187', 'W', '6239']