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:
7, 8, ['9045', 'C', 'V', 'G', 'Q', 'I', '9821', 'D']
answer:
9821D


question:
1, 3, ['1153', '947', '8291']
answer:
11539478291


question:
4, 6, ['2555', '4437', '7721', '8963', 'M', '1305']
answer:

8963M1305