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:
3, 10, ['9543', '2797', '3939', '8207', '329', 'l', '5353', '8849', '5579', '7445']
answer:
5447975594883535l92370289393


question:
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']
answer:
OF71899435335Si3373y71321771F


question:
6, 24, ['9145', 'a', '7425', '9793', '1941', 'b', 'V', '5487', '711', 'N', '8245', '5069', 'N', '3345', '7013', '4845', 'G', '4701', '535', 'p', '7321', '4417', '8943', '177', '3987', 'L', 'j', 'z']
answer:

771349871441237p5351074G548431075433N96055428N1177845Vb