Task: Program Execution
Input (English): 17, 20, ['3047', 'f', 'l', '9701', 'O', '9515', 'y', '5845', 'L', '4591', '6365', 'N', 'd', 'Z', 'Y', 'k', 'v', 'k', '347', 'R', '4647', '4487', 'i', '1973']
Output (English): v, k, 347, R