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.
11, 15, ['5679', '6733', '4581', '3159', 'U', '2969', 'o', 'U', 'x', 'z', '8255', 'p', '6613', '5825', 'P', 'T', '3187', 'c', 'U', 'E', '7609', 'l', 'G', '9505', '3147', 'P']