Task: Program Execution
Input (English): W, x, 9451, G, t, 2207, G, 9107, 1289, H, 6537, 4527, 979, v, 5155, b, E, 1849
Output (English): 9451, 2207, 9107, 1289, 6537, 4527, 979, 5155, 1849