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, 5, ['3001', '661', 'S', 'N', '7919']
answer:
9197N


question:
1, 9, ['f', 'f', '4381', 'c', '3523', 'u', 'E', 'y', '7713', 'f', 'Q', '7631', '9529', 'M', '6041', '8011', '8441', 'i', 'c', 'V', 'b', 'x', 'h', 't', 'l', '5041', 'v', '6685', 'c']
answer:
3177yEu3253c1834ff


question:
4, 9, ['4153', 'G', 'N', 'i', '3859', '4631', '1997', '1227', 'L', 'z', '7475', '2703', 'L', '9019', 'p', 'a']
answer:

L7221799113649583i