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.

[Q]: 1, 4, ['B', '5591', '1237', '1519']
[A]: 915173211955B


[Q]: 2, 10, ['R', 'g', '8909', '6051', '4011', 'T', 'P', '5051', 'u', '6287', '1069', '9051', 'K', 'G', 'o', 'b', '87', 'I', '6941', 'p', '6797', '8081', '6393', '4847', 'q', '8609', '739', 'P', '8443', 'C']
[A]: 7826u1505PT110415069098g


[Q]: 7, 9, ['J', 'f', 'E', '2817', 'M', '6401', '3945', 'I', 'G', 'w', '9833', '5033', 'R', 'n', 's', 'e', 'W', '1683', '305', '1747', 'Y', 'b', '7763', '8661']
[A]:
GI5493