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:
2, 4, ['5237', 'X', '1691', '5405']
answer:
X16915405


question:
6, 8, ['O', 'q', '4221', 'c', '8051', 'V', '639', 'E', 'X', '8367', 'g', 'K', '2951', '6485', '7635', 'q']
answer:
V639E


question:
19, 26, ['A', 'J', 'T', 'B', '3619', 'X', '4907', 'I', '3725', 'n', 'X', '3157', 'Z', '5005', '7523', '9339', '9475', '3959', 'G', '5545', 'B', '2329', '1191', '3903', 'W', '8925', '5053', '2401', '1579', '5739']
answer:

G5545B232911913903W8925