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: 4, 7, ['o', '5069', 'f', 'R', 'n', '7591', 'n', '2253', '5947', 'S', '9017', '5471', 'R', 'G', 'n', '645']

Rn7591n