Task: Program Execution
Input (English): l, 481, F, r, u, 4011, L, 9955, 4085, 4597, B, 8563, X, 4591, z, 5209, 8579, 4103, z, G, 5017, 3055, 4773, A
Output (English): 481, 4011, 9955, 4085, 4597, 8563, 4591, 5209, 8579, 4103, 5017, 3055, 4773