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, 2, ['k', 'B', 'V', '9213', 'w', '4869', '525']
answer:
B


question:
18, 21, ['S', '2229', '21', 'a', '3683', 'V', 'm', 'L', 'N', 'K', '7029', '1537', '989', '6491', '9101', '335', '6791', 'G', 'e', 't', '5063', 'G', '7661']
answer:
Get5063


question:
1, 3, ['K', 'T', 'K']
answer:

KTK


