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:
4, 7, ['h', '1133', 'n', 'Y', 'X', 'z', 'l']
answer:
YXzl


question:
5, 5, ['7173', 'b', '9573', 'O', '8047', 'f']
answer:
8047


question:
1, 6, ['e', '7633', 'k', 'O', 'M', '8099', 'O']
answer:

e7633kOM8099


