Task: Program Execution
Input (English): 9, 17, ['6489', '1887', '8751', '5395', '4457', '6873', '1981', '2319', '9111', '3107', 'j', 'j', '6453', 'f', 'i', 'M', '2809', 'U', 's']
Output (English): 9111, 3107, j, j, 6453, f, i, M, 2809