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, ['8425', 'd', '6021', 'x', 'p', 'Y', '5351', '3597', '7779', '7339', 'g', '3131', '7755', '8503', 'R', '4825']

5351359777797339g313177558503