Task: Program Execution
Input (English): A, 2919, 5333, 8513, x, 4817, U, 6391, 6121, E, W, 9223, r, 6629, c, C, 2915, 8137
Output (English): 2919, 5333, 8513, 4817, 6391, 6121, 9223, 6629, 2915, 8137