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, 21, ['g', '799', '1971', '547', '141', '301', '5001', '4513', '565', '8397', '1283', 'q', 'A', '8701', 'x', '6021', '3999', 'C', 'Y', 'c', 'C', '1143']

5471413015001451356583971283qA8701x60213999CYcC