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.

Example Input: 18, 21, ['k', 'p', 'k', '115', '5813', '4665', '6773', '9965', 'F', '8533', 'c', '8893', 't', '7853', 'g', 't', '1889', 'd', '5063', '279', '9911', 'f', '95', '2895', 'R', '7785', '9179', 'g']
Example Output: d50632799911

Example Input: 2, 3, ['5503', '1945', 'K', '541', '1461', '6853']
Example Output: 1945K

Example Input: 3, 7, ['1051', 'j', '8769', 'e', '9823', '8721', 'C']
Example Output:
8769e98238721C