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: 6, 9, ['b', '7129', '6899', 'J', 'R', 'Q', '5125', '9131', '1937', 'c', '9939', '5085', '6791', '6065', 'a', '2767', 'I', 'g', '9961', 'c', '8581']

Q512591311937