Task: Program Execution
Input (English): 6, 18, ['247', '4801', '8103', 'M', '9137', '4707', 'K', '8513', 'w', 'J', 'u', 'W', 'R', '267', 'P', '2473', '5235', 'a', 'n', 'g', '4053', '1887', 'a']
Output (English): 4707, K, 8513, w, J, u, W, R, 267, P, 2473, 5235, a