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, 9, ['967', 'U', 'o', 'u', 'q', '7129', '3339', 'K', 'r', 'M', '4735', '3945', '7877']

3339Kr