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.

Input: Consider Input: 1, 11, ['5203', 'Z', 'L', '6889', '9707', '707', '1999', 'T', 'H', 'p', '2013', 'O', '7451']

Output: 3102pHT999170770799886LZ3025


Input: Consider Input: 4, 7, ['1247', 's', 'J', 'w', 'X', '7211', 'c']

Output: c1127Xw


Input: Consider Input: 4, 7, ['m', '6015', '9069', 'r', 'F', 'f', '453', 'D', '3947', '95', '4027']


Output: 354fFr