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:
1, 6, ['P', 'i', 'b', 'e', '3967', 'L']
answer:
Pibe3967L


question:
1, 2, ['663', '6503']
answer:
6636503


question:
11, 14, ['e', 'T', 'A', 'W', '1331', 'z', 'W', '4649', '6931', '885', 'B', 'M', 'X', 'Z', 'K', 'H', 'w', 'W', 'B', '3541', 'k', 'g', '1121', 'N', '5643']
answer:

BMXZ