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]: 10, 10, ['Z', 'Z', '2205', '7113', 'G', 'k', '973', 'I', 'n', '415', '1505']
[EX A]: 514

[EX Q]: 1, 3, ['6017', 'o', '1817', 'W']
[EX A]: 7181o7106

[EX Q]: 1, 10, ['9441', 'M', 'b', '495', 'S', '4057', 'k', 'q', '1601', '9147', 'N', '1635', 'T', 'F', 'J', '5549']
[EX A]:
74191061qk7504S594bM1449