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:
9, 19, ['5843', 'b', '161', 'Z', 'h', '2323', '25', 'S', 'Z', 'A', 'l', 'R', 'O', '4543', 'd', 'J', '1667', 'I', 'N', 'K', 'T', '2767', '4409', 'B']

Ex Output:
NI7661Jd3454ORlAZ


Ex Input:
4, 9, ['d', '1057', '5737', '6925', '6365', 'y', 'w', '6535', 'P', 'F']

Ex Output:
P5356wy56365296


Ex Input:
6, 7, ['5879', '119', 'I', '3839', 'D', 'D', 'E', 'e', 'v', 'V', 'f', '6685', '6805', 'z', '6099', 'o', 'F', 'z']

Ex Output:

ED