Task: Program Execution
Input (English): H, 2529, 2611, x, 5193, 5445, v, 4827, 6905, Z, b, 4089, 9129, x, q, 7789, 9439
Output (English): H, x, v, Z, b, x, q, 2529, 2611, 5193, 5445, 4827, 6905, 4089, 9129, 7789, 9439