Task: Program Execution
Input (English): 8871, 5559, O, 4045, 6809, 7633, 4017, r, P, 7141, 627, q, i, 569, 4007, 2149, 5487
Output (English): O, r, P, q, i, 8871, 5559, 4045, 6809, 7633, 4017, 7141, 627, 569, 4007, 2149, 5487