Task: Program Execution
Input (English): M, 9621, 4417, E, 5313, 4047, 5485, 9313, 8543, 709, w, B, e, 4213, G, y, L
Output (English): M, E, w, B, e, G, y, L, 9621, 4417, 5313, 4047, 5485, 9313, 8543, 709, 4213