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: 3, 7, ['P', 'P', 'H', 'r', '3563', 'n', 'M', '1577', '6453']

Output: Mn3653rH


Input: Consider Input: 1, 9, ['u', 'f', 'Q', 'z', 'Y', 'x', '1237', 'T', '5395', 'E', 'D', 'E', 'd', '2319', '8825', '711', '6667', '3109', 'b']

Output: 5935T7321xYzQfu


Input: Consider Input: 14, 18, ['3195', '5083', '1497', 'O', '459', '5985', '5845', 'd', '693', '2679', '6933', '9419', 'W', 'Z', '8499', '827', '275', 'p', '1569', '6339', 'L', 'k', 'I', 'w', 'F', 'k', 'Q', 'o', 'z', 'C']


Output: p5727289948Z