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: 8, 20, ['4279', 'j', '4413', '7413', 'n', 'X', '877', 'L', '3097', 'S', '6177', 'L', 'i', '3113', 'h', '3145', '2245', 'k', '2073', '7477', 'm', '2485', '5129', 'q', '5519']

L3097S6177Li3113h31452245k20737477