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: 7, 14, ['o', '6337', 'Q', '8037', '4353', '6697', '7129', '749', 'x', 'e', 'R', 'n', 'x', '4627', 'N', 'l', '3309', 'r', 'l', '5327', 'B']

7129749xeRnx4627