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:
6, 7, ['1277', '1589', 'Z', 'U', '507', '4913', 'g', '4789']
answer:
4913g


question:
3, 15, ['1833', 'D', 'i', 'i', 'O', '4545', '133', '689', 'B', '9483', 'J', 'o', '4723', '6907', '3511', '3375', '7269', '545', 'C', '5563']
answer:
iiO4545133689B9483Jo472369073511


question:
20, 25, ['t', 'm', '3741', '7207', 'y', 'j', 'p', '211', '2781', 'G', 'G', '2317', '8051', 'j', '3871', '6131', '7473', 'Y', '625', '3099', 't', 'Y', 'e', 'u', '5803', '2117', '6925']
answer:

3099tYeu5803