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, 13, ['9651', 'r', '6965', 'L', 'J', 'V', 'Z', 'D', '1761', 'n', '3489', 'h', 'L', '1345', '3851', 'J', '4181', '8557', 'c']
answer:
r6965LJVZD1761n3489hL


question:
1, 2, ['7161', '3547', 'u']
answer:
71613547


question:
1, 2, ['4849', 'b']
answer:

4849b