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:
3, 4, ['8681', '2115', '9305', '2451']
answer:
93052451


question:
5, 7, ['L', 'L', '1691', '2221', 'W', '5023', '3925', 'p', '8279', '2293', 'h', '9061', 'r', '2863', 'p', 'U']
answer:
W50233925


question:
8, 17, ['n', 'J', '1341', 'd', '3461', 'H', '7783', '979', 'Y', 'y', 'O', '5117', 'R', '6851', '2159', 'C', '1949', 'O', '603', 'E', '2509', '7585', '7963']
answer:

979YyO5117R68512159C1949