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 find all elements of A from the ith element to the jth element, reverse the order in which they occur, and then concatenate them to output 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. Perform the operations in order, i.e., do not concatenate the elements and then reverse the string.
question:
2, 19, ['j', '7679', '6729', '319', '9397', '3963', '5687', '5555', 'L', 'P', '1429', '1885', '1489', '4641', '6755', 'f', 'E', '8993', '1735', '5147', 'g', 'q', '4773', 'y', 'k', '3599', 'S']
answer:
17358993Ef67554641148918851429PL555556873963939731967297679


question:
7, 13, ['7405', '2017', '1757', 'Y', '3515', 'J', 'Z', '7447', 'X', '6579', 'o', '489', 'N', '1603', 'N', '273', '1345', '6161', 'x']
answer:
N489o6579X7447Z


question:
2, 12, ['2673', 'k', 'k', 'w', 'k', 'z', '745', 'r', '653', '3657', '9029', '2129', 'y', '2031', 'k', 'G', 'D', 'l', '4593', '3319']
answer:

212990293657653r745zkwkk