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:
11, 11, ['8463', '9147', 'A', '8063', '8771', '955', 'c', '1821', '9631', 'U', '7979']
answer:
7979


question:
1, 1, ['S', '5881']
answer:
S


question:
1, 2, ['7725', 'f']
answer:

7725f