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.

Ex Input:
10, 13, ['v', '9787', '3803', 'P', 'M', '7127', '7845', '6369', 'u', '8715', 'I', '7491', '6593', '459', '1747', 'L']

Ex Output:
39561947I5178


Ex Input:
1, 1, ['4571', '3997']

Ex Output:
1754


Ex Input:
3, 6, ['6935', '4231', '7121', '1147', 'V', '7535', 'G', '3573', '9981', 'T', '8021', 'a', 'I', 'Z', '3247', '103', 'c']

Ex Output:

5357V74111217