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, 16, ['C', '5419', '1695', 'f', 'Q', '1289', 'v', 'Q', 'q', '2663', 'X', 'p', '3475', '4421', 'A', 'B', 'I', '8083', 'f']

1289vQq2663Xp34754421AB