Task: Program Execution
Input (English): 4661, 8855, x, 5193, 6041, 5815, 8301, H, 4623, 8001, 4111, N, 4949, E, 5015
Output (English): x, H, N, E, 4661, 8855, 5193, 6041, 5815, 8301, 4623, 8001, 4111, 4949, 5015