Task: Program Execution
Input (English): 4, 12, ['6807', '8237', '1043', 'k', 'Q', '6139', 'F', 'I', '5531', '1551', 'a', 'q', '7533', 'G', 'G', 'S', 'W', 'D', '1675', '8139', '6223', 'z', '9073', '2445']
Output (English): k, S