Task: Program Execution
Input (English): A, 209, 663, 631, Y, A, 2815, k, 5437, w, 2817, 9433, 8723, 2947, 7287, 6587, a, 5521, 8769, g, 9887, 9461
Output (English): 209, 663, 631, 2815, 5437, 2817, 9433, 8723, 2947, 7287, 6587, 5521, 8769, 9887, 9461