instruction:
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, 22, ['z', '7693', 'Z', 'h', 'R', 'M', '8357', '7373', '2569', '7189', 'J', 'm', 'Y', 'V', 'x', 'W', 'L', 'J', '375', '7873', 'v', 'o', '6495', 'd', '1459', '1341', 'M', 'e', '3919', 'E']
answer:
ov3787573JLWxVYmJ9817965237377538MRh


question:
1, 13, ['497', 'v', '7469', 'c', '8913', '533', 'P', '3051', '2237', 'R', '9609', 'J', 'R', 'x', '5787', '2203', '5943', '6847', '8989', 'A', '5227', 'O', 'M', 'n', '4993']
answer:
RJ9069R73221503P3353198c9647v794


question:
2, 15, ['P', 'h', '8471', '3667', 'R', 'h', '7945', 'I', '8079', 'F', '5987', '5099', 'v', 'U', '4481', 'C', 'a', 'R', '1197', '2401', 'b', 'C', 'z', 'u', '1877', '1233', 'Z', '1769', 'w', 'z']
answer:

1844Uv99057895F9708I5497hR76631748h