Task: Program Execution
Input (English): 7537, R, 907, 8265, a, 15, M, 1155, F, O, 9447, D, 2105, X, J, 3725, 4149, 5541, 3395, q, n, 859, q
Output (English): 7537, 907, 8265, 15, 1155, 9447, 2105, 3725, 4149, 5541, 3395, 859