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:
1, 2, ['6729', 'z']
answer:
6729z


question:
8, 23, ['5435', 'U', 'u', 'D', '2923', '1773', '977', 'r', '4341', 'v', '3685', 'i', '3605', '6297', 'x', '4065', '6503', 'c', '6943', 'r', 'e', '193', '2413']
answer:
r4341v3685i36056297x40656503c6943re1932413


question:
3, 9, ['8445', '5163', 'F', '4999', '4585', '3405', 'I', '157', '1067', '309', 'U', '8545', 'F', '8689', 'F', '2557']
answer:

F499945853405I1571067