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.
--------
Question: 4, 16, ['O', 'x', 'E', 'z', 'q', '2235', 'j', 'Q', '9655', '6887', '7651', '4695', 'p', 'M', '7975', 'p', 'u', '7275', 'y', 'w', '9677', 'I', '8609', '3333', '1835', '7137', '2509', '6157', '1805']

Answer: p5797Mp5964156778865569Qj5322qz


Question: 2, 12, ['p', 'o', '2673', 'd', 'r', 'n', 'Z', 'u', 'm', '5195', '6521', '7671']

Answer: 176712565915muZnrd3762o


Question: 2, 20, ['1055', '9109', 'h', 'j', '5857', '6791', 'h', 'o', '9903', 'e', '9247', '3909', 'f', '2545', 'n', 'E', '5971', 'G', '8567', '2987', 'K', 'b']

Answer:
78927658G1795En5452f90937429e3099oh19767585jh9019