instruction:
In this task, you are given inputs i,j, and A, where i and j are integers and A is a list. You need to concatenate all elements of A from the ith element to the jth element, and print the resultant 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.
question:
15, 20, ['E', 'V', '2589', 'r', '1501', '9699', 'K', 'S', '3971', 'k', '5743', '1525', 'c', 'O', 'X', 'i', '1863', '4295', 'M', '6309', '4975', '1663']
answer:
Xi18634295M6309


question:
21, 24, ['F', '9793', 'R', '7633', '6831', 'P', '4285', '7887', 'H', '307', '4865', 'M', '4521', '565', 'e', 'i', 'f', '8845', 'T', 'N', '3485', 'n', '1731', '4963', 'Y', '7493']
answer:
3485n17314963


question:
1, 5, ['3231', '31', '5127', '3047', '4773', '2973', '3059', '367', '2553', 'i', '461', 'z', 'z', '4633', 't', 'r', '8031', '327', 'o', '2239', '9777', '5457', '6765', '8935']
answer:

323131512730474773