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.

[EX Q]: 1, 7, ['B', '707', '7101', 'l', 'i', 'Q', 'e', '9437', 'i', '4709', 'w', 't', '1459', 'A', 'E', '923']
[EX A]: eQil1017707B

[EX Q]: 11, 22, ['419', '1533', 'E', 'v', 'S', 'W', '3961', '1175', 'W', 'N', 'F', '1771', '2317', 'y', '3733', 'i', 'S', '5335', '349', '9817', 'F', 'O', '7137', 'X', '6001']
[EX A]: OF71899435335Si3373y71321771F

[EX Q]: 18, 22, ['2023', '4061', '8165', '1153', '7059', '5953', '5481', 'I', '4151', '7591', 'R', '5263', '6411', 'V', '8215', '3673', 'z', 'a', 'g', 'h', 'f', '659', 'X', 'V', 'Z', '6331', 'C', 'C', 'l', 'J']
[EX A]:
956fhga