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: 7, 7, ['a', '1691', 'f', 'W', '8397', 'D', 'a', 'g', '2039', 'p', 'a', 'M', '5333', '7343']

a