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.

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']
7826u1505PT110415069098g

5, 7, ['Y', '5101', 'B', '5129', 'a', 'y', 'v', '4577', '5455', '6685', '6435']
vya

4, 16, ['8113', '4711', 'U', 'D', 'N', 'U', '8157', 'm', 'G', '215', 's', 'b', 'O', 'O', '8959', 'r', 'h', 'X', '8477', '1067', '3143', 'I', '2507', '4379', '7351', 'e', 'Z']

r9598OObs512Gm7518UND