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, 18, ['9781', '4365', '6517', 'u', 's', '9177', '8749', 'V', 'w', 'M', '5559', '5421', 'R', 'N', 'I', '5705', 'w', '5821']
answer:
I5705w5821


question:
1, 5, ['7197', '9', '8871', '7397', 'o']
answer:
7197988717397o


question:
11, 15, ['485', 'p', 'g', '8211', 'b', 'A', 't', 'i', '2425', '4717', '9339', '4469', 'L', '703', 'x', 'l', 'g', 'A', 'y', '2597', '6947', '2869', '1729', '9969', 'X', 's', '2651']
answer:

93394469L703x