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, 5, ['W', '9985', 'T', 'I', 'c']
answer:
Ic


question:
5, 16, ['4857', 'c', 'a', '8757', '5345', 'k', 'n', '4579', 'N', 'b', '2307', 'e', 'V', '6941', 'i', '9495', '4431', '3791', '9647', '7883']
answer:
5345kn4579Nb2307eV6941i9495


question:
7, 13, ['A', '5031', 'v', 'a', 'N', '1113', '7959', '5635', 'C', '5645', 'M', 'Y', 'R', '4241', '9769', 'A', '8011', 'e', '8267', 's', '9393', '6571', '4121', '8261']
answer:

79595635C5645MYR