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, ['1723', '6539']
answer:
17236539


question:
14, 19, ['r', '7583', 'd', 'I', 'n', '2281', '4977', '3473', '7677', '649', '2005', 's', '7207', 'W', 'f', '9103', 'j', 'j', '7643', 'x', '8397', '4873', '6261', 'n', 'r', '9059', '2375']
answer:
Wf9103jj7643


question:
12, 13, ['z', 'Q', 'l', '8803', 'v', '4255', 'f', 'n', '6599', 'j', '4533', '9763', 'U', '4095', '4077', 'X', '3351']
answer:

9763U