Definition: 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.
Input: 3, 6, ['G', 'Q', '5987', '5791', '7185', '8695', 'y', 'q', 's', '9913', '5917', 'y', 'T', '3361', 'Y', '959', 'p', '8357', '5073', '7603']

5987579171858695