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:
5, 8, ['9889', 'z', '895', 'W', 'j', 'K', '7047', '9723', '6281']

Ex Output:
32797407Kj


Ex Input:
2, 12, ['9797', 'D', '41', 'Y', 's', 'u', 'X', 'Q', '2437', '7385', '7137', 'S', '6367', 'w', 'f', '7021', '7685', '7413']

Ex Output:
S731758377342QXusY14D


Ex Input:
7, 9, ['R', '3565', 'S', '1149', 'Z', 'B', 'h', 'W', '1475', '671', '3021', 'T', 'o', 'r', 'o', '3923', 'h', 'A', '1795', '8103', '1279', '6395', '5869', '717', 'q']

Ex Output:

5741Wh