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: 3, 7, ['q', 'n', 'p', '6843', 's', 'd', 'f', '2635', 'J', '2853', 'i', 'm', 'P', '7089', 'p', '3687', '1975', '5683', 'g', 'c', 'm']

p6843sdf