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, 7, ['C', 'j', 'F', '495', 'H', '6595', 'h', '7567', 'f']
answer:
h5956H594


question:
5, 9, ['V', 'G', '4689', 'I', '6573', 'v', '4999', 'V', 'H', 'U', '2383', '489', '8517', 'K', 'A']
answer:
HV9994v3756


question:
2, 7, ['9161', '4815', 'e', '2053', 'r', 'G', '8661', '4455', 'm', 'S', '1833', 'z', '2285']
answer:

1668Gr3502e5184