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: 2, 7, ['o', 'L', '543', 'q', 'd', '4927', '3843', '1879', '6835', 'u', 'T', 'W', '9999', 'M', 'G', '9669', 'w', 'n', 's', '7209', '5397', 'N']

L543qd49273843