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: 2, 3, ['T', '9003', '3731', '287', '7101', 'm', '2147', '6123', '6319']

Output: 13733009


Input: Consider Input: 1, 1, ['g', '3127', 'O']

Output: g


Input: Consider Input: 3, 9, ['2387', '1749', 'f', '3537', '6853', 'C', '6703', 'j', 'x']


Output: xj3076C35867353f