Task: Program Execution
Input (English): P, 1107, X, 1045, 5215, 531, F, 7903, 4091, B, 9901, 5565, u, 8791, 1109, s, 5681, 8701, n, s, E, 2991
Output (English): 1107, 1045, 5215, 531, 7903, 4091, 9901, 5565, 8791, 1109, 5681, 8701, 2991